fix(app): Add Available stacks section with RoadRunner badge to README.md. (#143)

Author: terabytesoftw

CHANGELOG.md

@@ -3,6 +3,7 @@
 ## 0.1.1 Under development
 
 - Bug #140: Move badges for latest stable version and total downloads in `README.md` to `Installation` section (@terabytesoftw)
+- Bug #143: Add `Available stacks` section with `RoadRunner` badge to `README.md` (@terabytesoftw)
 
 ## 0.1.0 August 31, 2025
 

README.md

@@ -40,6 +40,12 @@ A modern, Bootstrap 5-powered Yii2 application template designed for rapid web-a
 - ✅ **Modern Bootstrap 5 UI** - Responsive, mobile-first design with latest Bootstrap components.
 - ✅ **Testing Ready** - Codeception test suite with examples for functional and unit testing.
 
+## Available stacks
+
+[![RoadRunner Worker](https://img.shields.io/badge/road%20runner-%23FF6B35.svg?style=for-the-badge&label=worker&logo=data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iMjQiIGhlaWdodD0iMjQiIHZpZXdCb3g9IjAgMCAyNCAyNCIgZmlsbD0ibm9uZSIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIj4KPHBhdGggZD0iTTEyIDJMMjIgMTJMMTIgMjJMMiAxMkwxMiAyWiIgZmlsbD0iI0ZGNkIzNSIvPgo8cGF0aCBkPSJNMTIgNkwxOCAxMkwxMiAxOEw2IDEyTDEyIDZaIiBmaWxsPSIjRkZGRkZGIi8+CjxwYXRoIGQ9Ik0xMiA5TDE1IDEyTDEyIDE1TDkgMTJMMTIgOVoiIGZpbGw9IiNGRjZCMzUiLz4KPC9zdmc+&logoColor=white)](https://github.com/yii2-extensions/app-basic/tree/road-runner)
+
+For setup instructions, see README in each branch.
+
 ## Quick start
 
 ### How it works