Update .gitlab-ci.yml file

.gitlab-ci.yml

@@ -30,6 +30,7 @@ deploy:
   script:
     - git add -f public
     - CHANGES=$(git status --porcelain | wc -l)
+    # following command comes from https://dev.to/ranb2002/how-to-push-to-a-git-repository-from-a-gitlab-ci-pipeline-4ikp
     - if [ "$CHANGES" -gt "0" ]; then 
         git status;
         git commit -m "Update public from ${CI_COMMIT_SHORT_SHA}";