Update PRTesting.yml

remove comments from yml file

Author: MatthiasBSchaefer

.github/workflows/PRTesting.yml

@@ -1,12 +1,7 @@
 name: PR_testing
 on:
-  # Triggers the workflow on push or pull request events but only for the "main" branch
   pull_request:
-  
-  # Allows you to run this workflow manually from the Actions tab
   workflow_dispatch:
-
-# A workflow run is made up of one or more jobs that can run sequentially or in parallel
 jobs:
   prepare:
     runs-on: self-hosted