upate drone

.drone.yml

@@ -13,8 +13,10 @@ steps:
        - cd brainsteam
        - hugo
        - cd ../
-       - cp -r brainsteam/public/* .
+       - git fetch origin public && git checkout public
+       - cp -r brainsteam/public new_files
        - rm -rf brainsteam/
+       - mv new_files/* .
    - name: hugo_publish
      #image: alpine:3.12.3
      image: appleboy/drone-git-push
@@ -23,7 +25,6 @@ steps:
        branch: public
        local_ref: public
        commit: true
-       force: true
        commit_message: update build from hugo
        author_name: DroneCI
     #  when: