Change deployment branch from 'main' to 'master'

Match branch name for automated build to work properly

Author: robotgoat

.github/workflows/deploy.yml

@@ -3,7 +3,7 @@ name: Deploy to GitHub Pages
 on:
   push:
     branches:
-      - main
+      - master
     # Review gh actions docs if you want to further define triggers, paths, etc
     # https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#on
   workflow_dispatch:
@@ -58,4 +58,4 @@ jobs:
     steps:
       - name: Deploy to GitHub Pages
         id: deployment
-        uses: actions/deploy-pages@v4
+        uses: actions/deploy-pages@v4