diff --git a/customers-x/_index.zd b/customers-x/_index.zd
new file mode 100644
index 0000000..278803b
--- /dev/null
+++ b/customers-x/_index.zd
@@ -0,0 +1,5 @@
+:title "Index"
+:menu-order 98
+:desc /
+shows database structure in a compact format. folds documents which have >20 children.
+:zd/index
\ No newline at end of file
diff --git a/customers-x/timeline.zd b/customers-x/timeline.zd
index d0968bc..79405f5 100644
--- a/customers-x/timeline.zd
+++ b/customers-x/timeline.zd
@@ -1,4 +1,5 @@
 :title "Timeline"
+:icon [:fa-duotone :fa-list-timeline]
 :menu-order 99
 :desc /
 shows history of changes in zendoc repo from git remote
diff --git a/customers-x/tutorial/1doc/visuals.zd b/customers-x/tutorial/1doc/visuals.zd
deleted file mode 100644
index 1ecc415..0000000
--- a/customers-x/tutorial/1doc/visuals.zd
+++ /dev/null
@@ -1,44 +0,0 @@
-
-:title "3. Visual ways to think in data"
-
-:desc /
-
-zendoc includes support for [mermaid](https://mermaid.js.org/) and mindmaps.
-
-:mermaid mm/
----
-title: Animal example
----
-classDiagram
-    note "From Duck till Giraffe"
-    Animal <|-- Duck
-    note for Duck "can fly\ncan swim\ncan dive\ncan help in debugging"
-    Animal <|-- Fish
-    Animal <|-- Zebra
-    Animal : +int age
-    Animal : +String gender
-    Animal: +isMammal()
-    Animal: +mate()
-    class Duck{
-        +String beakColor
-        +swim()
-        +quack()
-    }
-    class Fish{
-        -int sizeInFeet
-        -canEat()
-    }
-    class Zebra{
-        +bool is_wild
-        +run()
-    }
-
-:mindmap mindmap/
-
-What is mindmap?
- * It is a tool for thought
-   * ask questions
-   * structure knowledge
- * It is a brainstorm method
-   * set goals
-   * generate ideas
\ No newline at end of file
diff --git a/customers-x/tutorial/1doc.zd b/customers-x/tutorial/doc.zd
similarity index 100%
rename from customers-x/tutorial/1doc.zd
rename to customers-x/tutorial/doc.zd
diff --git a/customers-x/tutorial/1doc/syntax.zd b/customers-x/tutorial/doc/syntax.zd
similarity index 100%
rename from customers-x/tutorial/1doc/syntax.zd
rename to customers-x/tutorial/doc/syntax.zd
diff --git a/customers-x/tutorial/doc/visuals.zd b/customers-x/tutorial/doc/visuals.zd
new file mode 100644
index 0000000..c7bdeaf
--- /dev/null
+++ b/customers-x/tutorial/doc/visuals.zd
@@ -0,0 +1,44 @@
+
+:title "3. Visual ways to think in data"
+
+:desc /
+
+zendoc includes support for [mermaid](https://mermaid.js.org/) and mindmaps.
+
+:mermaid mm/
+---
+title: Animal example
+---
+classDiagram
+ note "From Duck till Giraffe"
+ Animal <|-- Duck
+ note for Duck "can fly\ncan swim\ncan dive\ncan help in debugging"
+ Animal <|-- Fish
+ Animal <|-- Zebra
+ Animal : +int age
+ Animal : +String gender
+ Animal: +isMammal()
+ Animal: +mate()
+ class Duck{
+ +String beakColor
+ +swim()
+ +quack()
+ }
+ class Fish{
+ -int sizeInFeet
+ -canEat()
+ }
+ class Zebra{
+ +bool is_wild
+ +run()
+ }
+
+:mindmap mindmap/
+
+What is mindmap?
+ * It is a tool for thought
+ * ask questions
+ * structure knowledge
+ * It is a brainstorm method
+ * set goals
+ * generate ideas
\ No newline at end of file
diff --git a/customers-x/tutorial/1doc/zentext.zd b/customers-x/tutorial/doc/zentext.zd
similarity index 99%
rename from customers-x/tutorial/1doc/zentext.zd
rename to customers-x/tutorial/doc/zentext.zd
index aafd80e..1b4bff2 100644
--- a/customers-x/tutorial/1doc/zentext.zd
+++ b/customers-x/tutorial/doc/zentext.zd
@@ -1,3 +1,4 @@
+
 :title "2. Zentext markup language"
 :desc /