feat: prevent pipeline error when /dist doesn't change

.github/workflows/docs.yml

@@ -118,4 +118,8 @@ jobs:
           git add --all
           git commit -m "docs.yml"
 
+          # suppress error exit code & return if nothing to commit
+          retVal=$?
+          if [ $retVal -eq 1 ]; then exit 0 ; fi
+
           git push origin "$BRANCH"