Add comprehensive Getting Started guide

- Complete step-by-step build instructions
- Quick start for beginners
- Troubleshooting section
- Android 16 compatibility notes
- Multiple build options explained
- Tips & tricks for faster builds
- Updated README.md with link to guide

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

README.md

@@ -8,6 +8,18 @@
 
 This repository contains tools to modify the Real Racing 3 APK to connect to **community-hosted servers** instead of EA's official servers. Perfect for game preservation, private servers, and offline play.
 
+---
+
+## 🚀 **[NEW: Getting Started Guide!](GETTING-STARTED.md)**
+
+**First time building?** Check out our comprehensive **[GETTING-STARTED.md](GETTING-STARTED.md)** guide with:
+- ✅ Step-by-step instructions
+- ✅ Troubleshooting tips
+- ✅ Android 16 compatibility guide
+- ✅ Quick start in 5 minutes
+
+---
+
 ## ✨ NEW: Server Browser UI
 
 **No more rebuilding APKs!** The new Server Browser feature lets users manage multiple community servers from within the game: