diff --git a/_Sidebar.md b/_Sidebar.md
index 9cf2f6a..ae8bb43 100644
--- a/_Sidebar.md
+++ b/_Sidebar.md
@@ -19,8 +19,13 @@
 # [For developers](For-developers)
   - [Coding style policy](Coding-style-policy)
     - [Indentation](Indentation)
-    - [String concatenation](String-concatenation)
+    - [Strings](Strings)
     - [Maximum line length](Maximum-line-length)
+    - [Constants](Constants)
+    - [Keywords](Keywords)
+    - [Calling functions](Calling-functions)
+    - [If-Statement](if-Statement)
+    - [Classes](Classes]
   - [Pull request policy](Pull-request-policy)
   - [Folder structure](Folder-structure)
   - [Actions](Actions)