changed branch terminology

Author: doomy

.github/workflows/zola.yml

@@ -1,12 +1,12 @@
 on:
   push:
     branches:
-      - main 
+      - master 
   pull_request:
 jobs:
   build_and_deploy:
     runs-on: ubuntu-latest
-    if: github.ref == 'refs/heads/main'
+    if: github.ref == 'refs/heads/master'
     steps:
       - name: 'Checkout'
         uses: actions/checkout@master