chore: miscellaneous fixes (#316)

* chore: remove unused theme.toml

* chore(basics): remove html comment

* chore(markdown-syntax): remove unnecessary html

* feat(emoji-support): insert line breaks with shortcode

avoid unsafe HTML rendering by moving <br> to a shortcode

https://gohugo.io/getting-started/configuration-markup/#rendererunsafe

exampleSite/content/posts/emoji-support.md

@@ -38,7 +38,7 @@ The following **cheat sheet** is a useful reference for emoji shorthand codes.
 | :-: | - | :-: | - |
 | :grinning: | grinning | :smiley: | smiley |
 | :smile: | smile | :grin: | grin |
-| :laughing: | laughing <br /> satisfied | :sweat_smile: | sweat_smile |
+| :laughing: | laughing {{< br >}} satisfied | :sweat_smile: | sweat_smile |
 | :rofl: | rofl | :joy: | joy |
 | :slightly_smiling_face: | slightly_smiling_face | :upside_down_face: | upside_down_face |
 | :wink: | wink | :blush: | blush |
@@ -124,7 +124,7 @@ The following **cheat sheet** is a useful reference for emoji shorthand codes.
 
 | icon | code | icon | code |
 | :-: | - | :-: | - |
-| :triumph: | triumph | :pout: | pout <br /> rage |
+| :triumph: | triumph | :pout: | pout {{< br >}} rage |
 | :angry: | angry | :smiling_imp: | smiling_imp |
 | :imp: | imp | :skull: | skull |
 | :skull_and_crossbones: | skull_and_crossbones | | |
@@ -133,7 +133,7 @@ The following **cheat sheet** is a useful reference for emoji shorthand codes.
 
 | icon | code | icon | code |
 | :-: | - | :-: | - |
-| :hankey: | hankey <br /> poop <br /> shit | :clown_face: | clown_face |
+| :hankey: | hankey {{< br >}} poop {{< br >}} shit | :clown_face: | clown_face |
 | :japanese_ogre: | japanese_ogre | :japanese_goblin: | japanese_goblin |
 | :ghost: | ghost | :alien: | alien |
 | :space_invader: | space_invader | :robot: | robot |
@@ -169,7 +169,7 @@ The following **cheat sheet** is a useful reference for emoji shorthand codes.
 | :green_heart: | green_heart | :blue_heart: | blue_heart |
 | :purple_heart: | purple_heart | :black_heart: | black_heart |
 | :100: | 100 | :anger: | anger |
-| :boom: | boom <br /> collision | :dizzy: | dizzy |
+| :boom: | boom {{< br >}} collision | :dizzy: | dizzy |
 | :sweat_drops: | sweat_drops | :dash: | dash |
 | :hole: | hole | :bomb: | bomb |
 | :speech_balloon: | speech_balloon | :eye_speech_bubble: | eye_speech_bubble |
@@ -183,7 +183,7 @@ The following **cheat sheet** is a useful reference for emoji shorthand codes.
 | icon | code | icon | code |
 | :-: | - | :-: | - |
 | :wave: | wave | :raised_back_of_hand: | raised_back_of_hand |
-| :raised_hand_with_fingers_splayed: | raised_hand_with_fingers_splayed | :hand: | hand <br /> raised_hand |
+| :raised_hand_with_fingers_splayed: | raised_hand_with_fingers_splayed | :hand: | hand {{< br >}} raised_hand |
 | :vulcan_salute: | vulcan_salute | | |
 
 ### Hand Fingers Partial
@@ -199,15 +199,15 @@ The following **cheat sheet** is a useful reference for emoji shorthand codes.
 | icon | code | icon | code |
 | :-: | - | :-: | - |
 | :point_left: | point_left | :point_right: | point_right |
-| :point_up_2: | point_up_2 | :fu: | fu <br /> middle_finger |
+| :point_up_2: | point_up_2 | :fu: | fu {{< br >}} middle_finger |
 | :point_down: | point_down | :point_up: | point_up |
 
 ### Hand Fingers Closed
 
 | icon | code | icon | code |
 | :-: | - | :-: | - |
-| :+1: | +1 <br /> thumbsup | :-1: | -1 <br /> thumbsdown |
-| :fist: | fist <br /> fist_raised | :facepunch: | facepunch <br /> fist_oncoming <br /> punch |
+| :+1: | +1 {{< br >}} thumbsup | :-1: | -1 {{< br >}} thumbsdown |
+| :fist: | fist {{< br >}} fist_raised | :facepunch: | facepunch {{< br >}} fist_oncoming {{< br >}} punch |
 | :fist_left: | fist_left | :fist_right: | fist_right |
 
 ### Hands
@@ -239,7 +239,7 @@ The following **cheat sheet** is a useful reference for emoji shorthand codes.
 | icon | code | icon | code |
 | :-: | - | :-: | - |
 | :baby: | baby | :boy: | boy |
-| :girl: | girl | :blonde_man: | blonde_man <br /> person_with_blond_hair |
+| :girl: | girl | :blonde_man: | blonde_man {{< br >}} person_with_blond_hair |
 | :man: | man | :woman: | woman |
 | :blonde_woman: | blonde_woman | :older_man: | older_man |
 | :older_woman: | older_woman | | |
@@ -248,13 +248,13 @@ The following **cheat sheet** is a useful reference for emoji shorthand codes.
 
 | icon | code | icon | code |
 | :-: | - | :-: | - |
-| :frowning_woman: | frowning_woman <br /> person_frowning | :frowning_man: | frowning_man |
-| :person_with_pouting_face: | person_with_pouting_face <br /> pouting_woman | :pouting_man: | pouting_man |
-| :ng_woman: | ng_woman <br /> no_good <br /> no_good_woman | :ng_man: | ng_man <br /> no_good_man |
+| :frowning_woman: | frowning_woman {{< br >}} person_frowning | :frowning_man: | frowning_man |
+| :person_with_pouting_face: | person_with_pouting_face {{< br >}} pouting_woman | :pouting_man: | pouting_man |
+| :ng_woman: | ng_woman {{< br >}} no_good {{< br >}} no_good_woman | :ng_man: | ng_man {{< br >}} no_good_man |
 | :ok_woman: | ok_woman | :ok_man: | ok_man |
-| :information_desk_person: | information_desk_person <br /> sassy_woman <br /> tipping_hand_woman | :sassy_man: | sassy_man <br /> tipping_hand_man |
-| :raising_hand: | raising_hand <br /> raising_hand_woman | :raising_hand_man: | raising_hand_man |
-| :bow: | bow <br /> bowing_man | :bowing_woman: | bowing_woman |
+| :information_desk_person: | information_desk_person {{< br >}} sassy_woman {{< br >}} tipping_hand_woman | :sassy_man: | sassy_man {{< br >}} tipping_hand_man |
+| :raising_hand: | raising_hand {{< br >}} raising_hand_woman | :raising_hand_man: | raising_hand_man |
+| :bow: | bow {{< br >}} bowing_man | :bowing_woman: | bowing_woman |
 | :man_facepalming: | man_facepalming | :woman_facepalming: | woman_facepalming |
 | :man_shrugging: | man_shrugging | :woman_shrugging: | woman_shrugging |
 
@@ -278,10 +278,10 @@ The following **cheat sheet** is a useful reference for emoji shorthand codes.
 | :man_pilot: | man_pilot | :woman_pilot: | woman_pilot |
 | :man_astronaut: | man_astronaut | :woman_astronaut: | woman_astronaut |
 | :man_firefighter: | man_firefighter | :woman_firefighter: | woman_firefighter |
-| :cop: | cop <br /> policeman | :policewoman: | policewoman |
-| :detective: | detective <br /> male_detective | :female_detective: | female_detective |
+| :cop: | cop {{< br >}} policeman | :policewoman: | policewoman |
+| :detective: | detective {{< br >}} male_detective | :female_detective: | female_detective |
 | :guardsman: | guardsman | :guardswoman: | guardswoman |
-| :construction_worker: | construction_worker <br /> construction_worker_man | :construction_worker_woman: | construction_worker_woman |
+| :construction_worker: | construction_worker {{< br >}} construction_worker_man | :construction_worker_woman: | construction_worker_woman |
 | :prince: | prince | :princess: | princess |
 | :man_with_turban: | man_with_turban | :woman_with_turban: | woman_with_turban |
 | :man_with_gua_pi_mao: | man_with_gua_pi_mao | :man_in_tuxedo: | man_in_tuxedo |
@@ -298,12 +298,12 @@ The following **cheat sheet** is a useful reference for emoji shorthand codes.
 
 | icon | code | icon | code |
 | :-: | - | :-: | - |
-| :massage: | massage <br /> massage_woman | :massage_man: | massage_man |
-| :haircut: | haircut <br /> haircut_woman | :haircut_man: | haircut_man |
-| :walking: | walking <br /> walking_man | :walking_woman: | walking_woman |
-| :runner: | runner <br /> running <br /> running_man | :running_woman: | running_woman |
+| :massage: | massage {{< br >}} massage_woman | :massage_man: | massage_man |
+| :haircut: | haircut {{< br >}} haircut_woman | :haircut_man: | haircut_man |
+| :walking: | walking {{< br >}} walking_man | :walking_woman: | walking_woman |
+| :runner: | runner {{< br >}} running {{< br >}} running_man | :running_woman: | running_woman |
 | :dancer: | dancer | :man_dancing: | man_dancing |
-| :business_suit_levitating: | business_suit_levitating | :dancers: | dancers <br /> dancing_women |
+| :business_suit_levitating: | business_suit_levitating | :dancers: | dancers {{< br >}} dancing_women |
 | :dancing_men: | dancing_men | | |
 
 ### Person Sport
@@ -313,13 +313,13 @@ The following **cheat sheet** is a useful reference for emoji shorthand codes.
 | :person_fencing: | person_fencing | :horse_racing: | horse_racing |
 | :skier: | skier | :snowboarder: | snowboarder |
 | :golfing_man: | golfing_man | :golfing_woman: | golfing_woman |
-| :surfer: | surfer <br /> surfing_man | :surfing_woman: | surfing_woman |
-| :rowboat: | rowboat <br /> rowing_man | :rowing_woman: | rowing_woman |
-| :swimmer: | swimmer <br /> swimming_man | :swimming_woman: | swimming_woman |
+| :surfer: | surfer {{< br >}} surfing_man | :surfing_woman: | surfing_woman |
+| :rowboat: | rowboat {{< br >}} rowing_man | :rowing_woman: | rowing_woman |
+| :swimmer: | swimmer {{< br >}} swimming_man | :swimming_woman: | swimming_woman |
 | :basketball_man: | basketball_man | :basketball_woman: | basketball_woman |
 | :weight_lifting_man: | weight_lifting_man | :weight_lifting_woman: | weight_lifting_woman |
-| :bicyclist: | bicyclist <br /> biking_man | :biking_woman: | biking_woman |
-| :mountain_bicyclist: | mountain_bicyclist <br /> mountain_biking_man | :mountain_biking_woman: | mountain_biking_woman |
+| :bicyclist: | bicyclist {{< br >}} biking_man | :biking_woman: | biking_woman |
+| :mountain_bicyclist: | mountain_bicyclist {{< br >}} mountain_biking_man | :mountain_biking_woman: | mountain_biking_woman |
 | :man_cartwheeling: | man_cartwheeling | :woman_cartwheeling: | woman_cartwheeling |
 | :men_wrestling: | men_wrestling | :women_wrestling: | women_wrestling |
 | :man_playing_water_polo: | man_playing_water_polo | :woman_playing_water_polo: | woman_playing_water_polo |
@@ -339,8 +339,8 @@ The following **cheat sheet** is a useful reference for emoji shorthand codes.
 | :two_women_holding_hands: | two_women_holding_hands | :couple: | couple |
 | :two_men_holding_hands: | two_men_holding_hands | :couplekiss_man_woman: | couplekiss_man_woman |
 | :couplekiss_man_man: | couplekiss_man_man | :couplekiss_woman_woman: | couplekiss_woman_woman |
-| :couple_with_heart: | couple_with_heart <br /> couple_with_heart_woman_man | :couple_with_heart_man_man: | couple_with_heart_man_man |
-| :couple_with_heart_woman_woman: | couple_with_heart_woman_woman | :family: | family <br /> family_man_woman_boy |
+| :couple_with_heart: | couple_with_heart {{< br >}} couple_with_heart_woman_man | :couple_with_heart_man_man: | couple_with_heart_man_man |
+| :couple_with_heart_woman_woman: | couple_with_heart_woman_woman | :family: | family {{< br >}} family_man_woman_boy |
 | :family_man_woman_girl: | family_man_woman_girl | :family_man_woman_girl_boy: | family_man_woman_girl_boy |
 | :family_man_woman_boy_boy: | family_man_woman_boy_boy | :family_man_woman_girl_girl: | family_man_woman_girl_girl |
 | :family_man_man_boy: | family_man_man_boy | :family_man_man_girl: | family_man_man_girl |
@@ -389,7 +389,7 @@ The following **cheat sheet** is a useful reference for emoji shorthand codes.
 | :rabbit2: | rabbit2 | :chipmunk: | chipmunk |
 | :bat: | bat | :bear: | bear |
 | :koala: | koala | :panda_face: | panda_face |
-| :feet: | feet <br /> paw_prints | | |
+| :feet: | feet {{< br >}} paw_prints | | |
 
 ### Animal Bird
 
@@ -421,7 +421,7 @@ The following **cheat sheet** is a useful reference for emoji shorthand codes.
 | icon | code | icon | code |
 | :-: | - | :-: | - |
 | :whale: | whale | :whale2: | whale2 |
-| :dolphin: | dolphin <br /> flipper | :fish: | fish |
+| :dolphin: | dolphin {{< br >}} flipper | :fish: | fish |
 | :tropical_fish: | tropical_fish | :blowfish: | blowfish |
 | :shark: | shark | :octopus: | octopus |
 | :shell: | shell | | |
@@ -432,7 +432,7 @@ The following **cheat sheet** is a useful reference for emoji shorthand codes.
 | :-: | - | :-: | - |
 | :snail: | snail | :butterfly: | butterfly |
 | :bug: | bug | :ant: | ant |
-| :bee: | bee <br /> honeybee | :beetle: | beetle |
+| :bee: | bee {{< br >}} honeybee | :beetle: | beetle |
 | :spider: | spider | :spider_web: | spider_web |
 | :scorpion: | scorpion | | |
 
@@ -464,7 +464,7 @@ The following **cheat sheet** is a useful reference for emoji shorthand codes.
 | icon | code | icon | code |
 | :-: | - | :-: | - |
 | :grapes: | grapes | :melon: | melon |
-| :watermelon: | watermelon | :mandarin: | mandarin <br /> orange <br /> tangerine |
+| :watermelon: | watermelon | :mandarin: | mandarin {{< br >}} orange {{< br >}} tangerine |
 | :lemon: | lemon | :banana: | banana |
 | :pineapple: | pineapple | :apple: | apple |
 | :green_apple: | green_apple | :pear: | pear |
@@ -545,7 +545,7 @@ The following **cheat sheet** is a useful reference for emoji shorthand codes.
 | icon | code | icon | code |
 | :-: | - | :-: | - |
 | :plate_with_cutlery: | plate_with_cutlery | :fork_and_knife: | fork_and_knife |
-| :spoon: | spoon | :hocho: | hocho <br /> knife |
+| :spoon: | spoon | :hocho: | hocho {{< br >}} knife |
 | :amphora: | amphora | | |
 
 ## Travel & Places
@@ -621,7 +621,7 @@ The following **cheat sheet** is a useful reference for emoji shorthand codes.
 | :ambulance: | ambulance | :fire_engine: | fire_engine |
 | :police_car: | police_car | :oncoming_police_car: | oncoming_police_car |
 | :taxi: | taxi | :oncoming_taxi: | oncoming_taxi |
-| :car: | car <br /> red_car | :oncoming_automobile: | oncoming_automobile |
+| :car: | car {{< br >}} red_car | :oncoming_automobile: | oncoming_automobile |
 | :blue_car: | blue_car | :truck: | truck |
 | :articulated_lorry: | articulated_lorry | :tractor: | tractor |
 | :racing_car: | racing_car | :motorcycle: | motorcycle |
@@ -637,7 +637,7 @@ The following **cheat sheet** is a useful reference for emoji shorthand codes.
 
 | icon | code | icon | code |
 | :-: | - | :-: | - |
-| :anchor: | anchor | :boat: | boat <br /> sailboat |
+| :anchor: | anchor | :boat: | boat {{< br >}} sailboat |
 | :canoe: | canoe | :speedboat: | speedboat |
 | :passenger_ship: | passenger_ship | :ferry: | ferry |
 | :motor_boat: | motor_boat | :ship: | ship |
@@ -685,7 +685,7 @@ The following **cheat sheet** is a useful reference for emoji shorthand codes.
 | icon | code | icon | code |
 | :-: | - | :-: | - |
 | :new_moon: | new_moon | :waxing_crescent_moon: | waxing_crescent_moon |
-| :first_quarter_moon: | first_quarter_moon | :moon: | moon <br /> waxing_gibbous_moon |
+| :first_quarter_moon: | first_quarter_moon | :moon: | moon {{< br >}} waxing_gibbous_moon |
 | :full_moon: | full_moon | :waning_gibbous_moon: | waning_gibbous_moon |
 | :last_quarter_moon: | last_quarter_moon | :waning_crescent_moon: | waning_crescent_moon |
 | :crescent_moon: | crescent_moon | :new_moon_with_face: | new_moon_with_face |
@@ -775,13 +775,13 @@ The following **cheat sheet** is a useful reference for emoji shorthand codes.
 | icon | code | icon | code |
 | :-: | - | :-: | - |
 | :eyeglasses: | eyeglasses | :dark_sunglasses: | dark_sunglasses |
-| :necktie: | necktie | :shirt: | shirt <br /> tshirt |
+| :necktie: | necktie | :shirt: | shirt {{< br >}} tshirt |
 | :jeans: | jeans | :dress: | dress |
 | :kimono: | kimono | :bikini: | bikini |
 | :womans_clothes: | womans_clothes | :purse: | purse |
 | :handbag: | handbag | :pouch: | pouch |
 | :shopping: | shopping | :school_satchel: | school_satchel |
-| :mans_shoe: | mans_shoe <br /> shoe | :athletic_shoe: | athletic_shoe |
+| :mans_shoe: | mans_shoe {{< br >}} shoe | :athletic_shoe: | athletic_shoe |
 | :high_heel: | high_heel | :sandal: | sandal |
 | :boot: | boot | :crown: | crown |
 | :womans_hat: | womans_hat | :tophat: | tophat |
@@ -822,7 +822,7 @@ The following **cheat sheet** is a useful reference for emoji shorthand codes.
 | icon | code | icon | code |
 | :-: | - | :-: | - |
 | :iphone: | iphone | :calling: | calling |
-| :phone: | phone <br /> telephone | :telephone_receiver: | telephone_receiver |
+| :phone: | phone {{< br >}} telephone | :telephone_receiver: | telephone_receiver |
 | :pager: | pager | :fax: | fax |
 
 ### Computer
@@ -847,14 +847,14 @@ The following **cheat sheet** is a useful reference for emoji shorthand codes.
 | :vhs: | vhs | :mag: | mag |
 | :mag_right: | mag_right | :candle: | candle |
 | :bulb: | bulb | :flashlight: | flashlight |
-| :izakaya_lantern: | izakaya_lantern <br /> lantern | | |
+| :izakaya_lantern: | izakaya_lantern {{< br >}} lantern | | |
 
 ### Book Paper
 
 | icon | code | icon | code |
 | :-: | - | :-: | - |
 | :notebook_with_decorative_cover: | notebook_with_decorative_cover | :closed_book: | closed_book |
-| :book: | book <br /> open_book | :green_book: | green_book |
+| :book: | book {{< br >}} open_book | :green_book: | green_book |
 | :blue_book: | blue_book | :orange_book: | orange_book |
 | :books: | books | :notebook: | notebook |
 | :ledger: | ledger | :page_with_curl: | page_with_curl |
@@ -876,7 +876,7 @@ The following **cheat sheet** is a useful reference for emoji shorthand codes.
 
 | icon | code | icon | code |
 | :-: | - | :-: | - |
-| :email: | email <br /> envelope | :e-mail: | :e-mail: |
+| :email: | email {{< br >}} envelope | :e-mail: | :e-mail: |
 | :incoming_envelope: | incoming_envelope | :envelope_with_arrow: | envelope_with_arrow |
 | :outbox_tray: | outbox_tray | :inbox_tray: | inbox_tray |
 | :package: | package | :mailbox: | mailbox |
@@ -891,7 +891,7 @@ The following **cheat sheet** is a useful reference for emoji shorthand codes.
 | :pencil2: | pencil2 | :black_nib: | black_nib |
 | :fountain_pen: | fountain_pen | :pen: | pen |
 | :paintbrush: | paintbrush | :crayon: | crayon |
-| :memo: | memo <br /> pencil | | |
+| :memo: | memo {{< br >}} pencil | | |
 
 ### Office
 
@@ -1055,7 +1055,7 @@ The following **cheat sheet** is a useful reference for emoji shorthand codes.
 | :-: | - | :-: | - |
 | :bangbang: | bangbang | :interrobang: | interrobang |
 | :question: | question | :grey_question: | grey_question |
-| :grey_exclamation: | grey_exclamation | :exclamation: | exclamation <br /> heavy_exclamation_mark |
+| :grey_exclamation: | grey_exclamation | :exclamation: | exclamation {{< br >}} heavy_exclamation_mark |
 | :wavy_dash: | wavy_dash | | |
 
 ### Currency
@@ -1180,11 +1180,11 @@ The following **cheat sheet** is a useful reference for emoji shorthand codes.
 | :estonia: | estonia | :egypt: | egypt |
 | :western_sahara: | western_sahara | :eritrea: | eritrea |
 | :es: | es | :ethiopia: | ethiopia |
-| :eu: | eu <br /> european_union | :finland: | finland |
+| :eu: | eu {{< br >}} european_union | :finland: | finland |
 | :fiji: | fiji | :falkland_islands: | falkland_islands |
 | :micronesia: | micronesia | :faroe_islands: | faroe_islands |
 | :fr: | fr | :gabon: | gabon |
-| :gb: | gb <br /> uk | :grenada: | grenada |
+| :gb: | gb {{< br >}} uk | :grenada: | grenada |
 | :georgia: | georgia | :french_guiana: | french_guiana |
 | :guernsey: | guernsey | :ghana: | ghana |
 | :gibraltar: | gibraltar | :greenland: | greenland |

exampleSite/content/posts/markdown-syntax.md

@@ -9,7 +9,6 @@ showTableOfContents: true
 ---
 
 This article offers a sample of basic Markdown syntax that can be used in Hugo content files, also it shows whether basic HTML elements are decorated with CSS in a Hugo theme.
-<!--more-->
 
 # Headings
 
@@ -39,8 +38,8 @@ The blockquote element represents content that is quoted from another source, op
 
 ### Blockquote with attribution
 
-> Don't communicate by sharing memory, share memory by communicating.<br>
-> — <cite>Rob Pike[^1]</cite>
+> Don't communicate by sharing memory, share memory by communicating.
+> — Rob Pike[^1]
 
 [^1]: The above quote is excerpted from Rob Pike's [talk](https://www.youtube.com/watch?v=PAAkCSZUG1c) during Gopherfest, November 18, 2015.
 
@@ -90,6 +89,7 @@ Tables aren't part of the core Markdown spec, but Hugo supports them out-of-the-
     </html>
 
 ### Code block with Hugo's internal highlight shortcode
+
 {{< highlight html >}}
 <!doctype html>
 <html lang="en">

exampleSite/content/posts/theme-documentation-basics.md

@@ -16,9 +16,6 @@ Follow these steps to initialize your new website.
 
 If you are new to [Hugo](https://gohugo.io/), we suggest following this [great documentation for beginners](https://gohugo.io/getting-started/quick-start/).
 
-<!-- Set human-readable heading IDs:
-    https://gohugo.io/content-management/cross-references/#heading-ids -->
-
 ### a. Create Your Project {#create-your-project}
 
 Hugo provides a `new` subcommand to create a new website:

layouts/shortcodes/br.html

@@ -0,0 +1 @@
+<br>