Update build-and-deploy-jekyll-site.yml

Changed run trigger to act on pushes to `main` branch

Author: janhalen

.github/workflows/build-and-deploy-jekyll-site.yml

@@ -8,7 +8,7 @@ name: Deploy Jekyll site to Pages
 
 on:
   push:
-    branches: ["testing"]
+    branches: ["main"]
 
   # Allows you to run this workflow manually from the Actions tab
   workflow_dispatch: