Deploy GitHub Pages from GithubPages branch instead of master

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: hatton

.github/workflows/pages.yml

@@ -6,7 +6,7 @@ env:
 on:
   push:
     branches:
-      - master
+      - GithubPages
   workflow_dispatch:
 
 permissions: