diff --git a/_Sidebar.md b/_Sidebar.md
index c0cbac3..8fcb40b 100644
--- a/_Sidebar.md
+++ b/_Sidebar.md
@@ -18,14 +18,17 @@
 
 # [For developers](For-developers)
   - [Coding style policy](Coding-style-policy)
+    - [Whitespace](Whitespace)
     - [Indentation](Indentation)
     - [Strings](Strings)
     - [Maximum line length](Maximum-line-length)
     - [Constants](Constants)
     - [Keywords](Keywords)
-    - [Calling functions](Calling-functions)
+    - [Operators](Operators)
+    - [Functions](Functions)
     - [If-Statement](if-Statement)
     - [Classes](Classes)
+    - [Casting](Casting)
   - [Pull request policy](Pull-request-policy)
   - [Folder structure](Folder-structure)
   - [Actions](Actions)