Update ci.yml

- renamed the action
- run the action on PRs made to main

.github/workflows/ci.yml

@@ -1,10 +1,12 @@
-name: ubuntu-manual-install
+name: transform-xml-to-json
 
 # Controls when the action will run. Triggers the workflow on push or pull request
 # events but only for the master branch
 on:
   push:
     branches: [ main ]
+  pull_request:
+    branches: [ main ]
 
 # A workflow run is made up of one or more jobs that can run sequentially or in parallel
 jobs: