Enable testing on pull request of github pages build

Author: pdxjohnny

.github/workflows/github-pages.yml

@@ -5,7 +5,13 @@ on:
    - cron: '55 13 * * *' 
     # Above time reflects UTC -> PST conversion
     # At 6:55 am (PST/PDT) every day, run this CI job
-
+ pull_request:
+   paths:
+     - ".github/workflows/github-pages.yml"
+     - "src/**"
+   branches:
+     - "master"
+     - "app/dev"
  workflow_dispatch: 
 
 jobs: