ADDS: adding features to show TOC on NAV BAR

doc/development_guide/development_guide.md

 - [2.1. Configure Environment](./2.-Development-Guide/2.1.-Configure-Environment)
 - [2.2. Configure VScode](./2.-Development-Guide/2.2.-Configure-VScode)
 - [2.3. Develop A Component (WIP)](./2.-Development-Guide/2.3.-Develop-A-Component)
+
+
+### can be deleted as it has no relevant information.
\ No newline at end of file

mkdocs.yml

@@ -40,6 +40,9 @@ theme:
   - navigation.path
   - search
   - search.highlight
+  #adding features
+  - navigation.tabs
+  - toc.integrate
 
   palette:
     primary: '0D47A1' ##TFS logo color