fix: Correct broken demo GIF link in README

Your Name · Your Name · commit e26426999b81 · 2025-07-17T06:54:14.000+09:00
diff --git a/README.md b/README.md
@@ -34,7 +34,7 @@
 
 ## Demo
 
-![Demo of git-scribe in action](https://raw.githubusercontent.com/popyson1648/git-scribe/docs/fix-readme-gif/assets/demo.gif)
+![Demo of git-scribe in action](https://raw.githubusercontent.com/popyson1648/git-scribe/main/assets/demo.gif)
 
 ## Features
 
