[automation] Copy docs from beta branch

Populates beta.tinybase.org

Author: jamesgpearce

.github/workflows/betaSite.yml

@@ -0,0 +1,26 @@
+on:
+  push:
+    branches:
+      - beta
+  workflow_dispatch:
+      
+jobs:
+  betaSite:
+    runs-on: ubuntu-latest
+    steps:
+        
+    - name: Copy
+      id: copy
+      uses: andstor/copycat-action@v3
+      with:
+        personal_token: ${{ secrets.TINYPLEXBOT_PERSONAL_ACCESS_TOKEN }}
+        src_branch: beta
+        src_path: docs
+        exclude: "**/CNAME"
+        dst_owner: tinyplex
+        dst_repo_name: tinybase-site-beta
+        dst_branch: main
+        dst_path: /
+        commit_message: "[action] Mirrored from tinybase beta branch."
+        username: tinyplexbot
+        email: [email protected]