Auto-run on master branch

.github/workflows/nextjs.yml

@@ -7,7 +7,7 @@ name: Deploy Next.js site to GH-Pages
 on:
   # Runs on pushes targeting the default branch
   push:
-    branches: ["main"]
+    branches: ["master"]
 
   # Allows you to run this workflow manually from the Actions tab
   workflow_dispatch:
@@ -82,6 +82,7 @@ jobs:
       url: ${{ steps.deployment.outputs.page_url }}
     runs-on: ubuntu-latest
     needs: build
+    if: github.ref == 'refs/heads/master'
     steps:
       - name: Deploy to GitHub Pages
         id: deployment