Fix YAML indentation to use 2 spaces

Co-authored-by: filmgirl <110683+filmgirl@users.noreply.github.com>

Author: Copilot

collections/github-copilot-sdk-contest-winners/index.md

@@ -1,15 +1,15 @@
 ---
 items:
- - HoppouAI/OctoBrowser
- - Hunter-Thompson/stardew-mcp
- - brenbuilds1/copilot-app-factory
- - ivproduced/SYSAdmin-CoPilot
- - kasuken/vscode-shipit
- - adirh3/copilot-discord-bot
- - iwangbowen/cyber-chess-roast
- - SchwarziLukas/braindump-butler
- - smestern/treepilot
- - Arthur742Ramos/repo-bootcamp
+  - HoppouAI/OctoBrowser
+  - Hunter-Thompson/stardew-mcp
+  - brenbuilds1/copilot-app-factory
+  - ivproduced/SYSAdmin-CoPilot
+  - kasuken/vscode-shipit
+  - adirh3/copilot-discord-bot
+  - iwangbowen/cyber-chess-roast
+  - SchwarziLukas/braindump-butler
+  - smestern/treepilot
+  - Arthur742Ramos/repo-bootcamp
 display_name: GitHub Copilot SDK Reddit Contest Winners
 created_by: filmgirl
 ---