Correcting a typo in code (#3492)

Author: pjanck

content/actions/reference/events-that-trigger-workflows.md

@@ -343,7 +343,7 @@ jobs:
       - run: |
           echo "Comment on PR #${{ github.event.issue.number }}"
 
-  issue-commented:
+  issue_commented:
     # This job only runs for issue comments
     name: Issue comment
     if: ${{ !github.event.issue.pull_request }}