docs fixes

  * Some text has been improved
  * Typo fixes

README.md

@@ -4,12 +4,12 @@ letsrenew is a python script that is able to retrieve a certificate from a host,
 
 ## requirements
 
-Probably ''python3-openssl'' should be installed on your system. The provided binary has everything bundled.
-To use the build script you need ''pyinstaller'' and ''fpm''.
+Probably `python3-openssl` should be installed on your system. The provided binary has everything bundled.
+To use the build script you need `pyinstaller` and `fpm`.
 
 ## instructions
 
-The provided ''build.sh'' script should give you both a binary version as well as a debian package inside a ''dist'' directory.
+The provided `build.sh` script should give you both a binary version as well as a debian package inside a `dist` directory.
 
 ## usage
 ```
@@ -21,11 +21,11 @@ positional arguments:
   hostname              Hostname that will be requested from the webserver.
 
 optional arguments:
-  -h, --help            show this help message and exit
+  -h, --help            show this help message and exit.
   -a ADDRESS, --address ADDRESS
-                        Alternate address to connect (don't resolve the hostname).
+                        Alternate address to connect (to circumvent proxies, balancers, etc...).
   -p PORT, --port PORT  Alternate port to connect to.
-  -j, --json            Output in JSON fromat.
+  -j, --json            Output in JSON format.
   -l ALERT, --alert ALERT
                         Output only on alerts. Specify it as the validity threshold in days. 0 for
                         Always output (default).
@@ -65,4 +65,4 @@ This program is free software: you can redistribute it and/or modify it under th
 
 This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
 
-You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>.
+You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>.

letsrenew.py

@@ -100,11 +100,11 @@ def parse_arguments():
     parser.add_argument("hostname",
                         action="store", help="Hostname that will be requested from the webserver.")
     parser.add_argument("-a", "--address",
-                        action="store", required=False, help="Alternate address to connect (don't resolve the hostname).")
+                        action="store", required=False, help="Alternate address to connect (to circumvent proxies, balancers, etc...).")
     parser.add_argument("-p", "--port", default=443, type=int,
                         action="store", required=False, help="Alternate port to connect to.")
     parser.add_argument("-j", "--json", default=False,
-                        action="store_true", required=False, help="Output in JSON fromat.")
+                        action="store_true", required=False, help="Output in JSON format.")
     parser.add_argument("-l", "--alert", default=0, type=int,
                         action="store", required=False, help="Output only on alerts. Specify it as the validity threshold in days. 0 for Always output (default).")