Fixing gh-pages push issue

update_documentation.sh

@@ -29,7 +29,6 @@ echo "Repo url is $URL"
 PUSH_URL="https://$GIT_USER:$GIT_PASS@${URL:8}"
 
 git remote set-url origin ${PUSH_URL}
-git push --set-upstream origin gh-pages
 
 echo "Checking out $FROM_BRANCH..." && \
 git fetch origin ${FROM_BRANCH}:${FROM_BRANCH} && \
@@ -47,7 +46,7 @@ git merge ${FROM_BRANCH} && \
 
 # Push changes back to remote vcs
 echo "Pushing changes..." && \
-git push && \
+git push origin gh-pages && \
 echo "Merge complete!" || \
 echo "Error Occurred. Merge failed"
 
@@ -59,4 +58,4 @@ echo "Sphinx not able to generate HTML"
 
 git status && git add . &&
 git commit -m "Auto updating documentation from $CURRENT_BRANCH" &&
-git push && echo "Documentation pushed"
+git push origin gh-pages && echo "Documentation pushed"