Update installation.md

Author: MichaelCurrin

docs/manual/installation.md

@@ -6,7 +6,7 @@ Go to the Marketplace and click the _Install_ button.
 
 <div align="center">
 
-[![VS Code Marketplace - Auto Commit Message](https://img.shields.io/badge/VS_Code_Marketplace-Auto_Commit_Message-blue?style=for-the-badge&logo=visual-studio-code)](https://marketplace.visualstudio.com/items?itemName=MichaelCurrin.auto-commit-msg)
+[![VS Code Marketplace - Auto Commit Message](https://img.shields.io/badge/VS_Code_Marketplace-Auto_Commit_Message-2ea44f?style=for-the-badge&logo=visual-studio-code)](https://marketplace.visualstudio.com/items?itemName=MichaelCurrin.auto-commit-msg)
 
 </div>