Also update gettign started index

Author: SimonDarksideJ

articles/getting_started/index.md

@@ -41,15 +41,11 @@ By the end of this tutorial set, you will have a working project to build for yo
 - [VS Code](./2_choosing_your_ide_vscode.md)
 - [Rider](./2_choosing_your_ide_rider.md)
 
-### 3. Building your game
+### 3. Packaging Games
 
-- [Understanding the Code](3_understanding_the_code.md)
-- [Adding Content](4_adding_content.md)
-- [Adding Basic Code](5_adding_basic_code.md)
-
-### 4. Packaging Games
 - [Packaging Games for Distribution](packaging_games.md)
 
-### 5. Advanced Topics
+### 4. Advanced Topics
+
 - [Preparing for Consoles](preparing_for_consoles.md)
 - [Using Development Nuget Packages](using_development_nuget_packages.md)