doc: Fix base state documentation

Author: eFrane

docs/usage/modules.md

@@ -26,13 +26,9 @@ below is a little more complicated.
   S[State]
 ```
 
-**Base state for items**
+**Base state**
 
-<<< @/../src/module/state/item.js
-
-**Base state for collections**
-
-<<< @/../src/module/state/collection.js
+<<< @/../src/module/State.js#base_state
 
 ### The fields
 

src/module/State.js

@@ -1,3 +1,4 @@
+// #region base_state
 const collection = {
   loading: false,
   items: {},
@@ -14,6 +15,7 @@ const item = {
   initial: {},
   options: {}
 }
+// #endregion base_state
 
 /**
  * Return a new Object representing the initial state of a module