Update update_docs

Author: beckermr

.ci_scripts/update_docs

@@ -28,7 +28,7 @@ mv docs-README docs/README
 
 # Only commit the docs for commits on master.
 # GITHUB_HEAD_REF is empty on forks
-if [[ "$GH_REF" == "ref/heads/master" ]] && [[ "$GH_TOKEN" != "" ]]; then
+if [[ $GH_REF == ref/heads/master ]] && [[ "$GH_TOKEN" != "" ]]; then
     git add -A :/
     git commit -m "Re-ran make.py. [ci skip]" || true
     git remote add pushable https://${GH_TOKEN}@github.com/conda-forge/conda-forge.github.io.git/ > /dev/null