chore(ci): add changelog generation part 2

Author: heitorlessa

.github/workflows/on_release_notes.yml

@@ -17,14 +17,14 @@ jobs:
           echo "RELEASE_TAG_VERSION=${RELEASE_TAG_VERSION:1}" >> $GITHUB_ENV
       - name: Generate changelog
         run: make changelog
-     - name: Git setup
+      - name: Git setup
         run: |
           # setup the username and email. I tend to use 'GitHub Actions Bot' with no email by default
           git config user.name "Release bot"
           git config user.email "<>"
 
       - name: Update Changelog in trunk
         run: |
-          git add CHANGELOG
+          git add CHANGELOG.md
           git commit -m "chore(ci): update changelog with version ${RELEASE_TAG_VERSION}"
           git push origin master