diff --git a/README.md b/README.md
index ecdcaf7..9fc9f72 100644
--- a/README.md
+++ b/README.md
@@ -22,7 +22,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: repo-sync
-      uses: wei/git-sync@master
+      uses: wei/git-sync@v1
       env:
         SOURCE_REPO: ""
         SOURCE_BRANCH: ""
@@ -34,6 +34,10 @@ jobs:
 ```
 `SSH_PRIVATE_KEY` can be omitted if using authenticated HTTPS repo clone urls like `https://username:access_token@github.com/username/repository.git`.
 
+#### Advanced: Sync all branches
+
+To Sync all branches from source to destination, use `SOURCE_BRANCH: "refs/remotes/source/*"` and `DESTINATION_BRANCH: "refs/heads/*"`. But be careful, branches with the same name including `master` will be overwritten.
+
 ### Docker
 ```
 docker run --rm -e "SSH_PRIVATE_KEY=$(cat ~/.ssh/id_rsa)" $(docker build -q .) \
diff --git a/git-sync.sh b/git-sync.sh
index fa8853c..22b3dce 100755
--- a/git-sync.sh
+++ b/git-sync.sh
@@ -32,8 +32,5 @@ echo "SOURCE=$SOURCE_REPO:$SOURCE_BRANCH"
 echo "DESTINATION=$DESTINATION_REPO:$DESTINATION_BRANCH"
 
 git clone "$SOURCE_REPO" --origin source && cd `basename "$SOURCE_REPO" .git`
-git checkout "$SOURCE_BRANCH"
-git show --name-status
 git remote add destination "$DESTINATION_REPO"
-git remote -v
 git push destination "${SOURCE_BRANCH}:${DESTINATION_BRANCH}" -f