- name: get diff
 id: get_diff
 run: |
 git diff --quiet ./README.md || echo "::set-output name=new_changes_exist::true"

- name: update README.md
 if: steps.get_diff.outputs.new_changes_exist == 'true'
 run: |
 git add ./README.md
 git config user.name github-actions
 git config user.email github-actions@github.com
 git commit -m "Automatic Update README.md"
 git push