Manual: Update build scripts in preparation of multi-repo setup

.github/workflows/main.yml

@@ -18,10 +18,11 @@ jobs:
     - name: Build
       run: |
         sudo apt update
-        sudo apt install -y wget npm python3 python3-pip
+        sudo apt install -y git wget npm python3 python3-pip
         sudo npm install -g tiddlywiki
         sudo pip3 install beautifulsoup4 html5lib
         bash ./Bootstrap.sh
+        sh ./GitHub.Main.sh
 
     - name: Deploy
       uses: JamesIves/github-pages-deploy-action@v4