message: add Chinese docs
diff: @@ -55,7 +55,7 @@ This hook checks your commits for formatting, building, doc generation, etc.
  cd $working_dir/nebula/.git/hooks
  ln -s ../../cpplint/bin/pre-commit.sh .
  ```
  -Sometime, pre-commit hook can not be executable. In such case, you have to make it executable manually.
  +Sometimes, pre-commit hook can not be executable. In such case, you have to make it executable manually.
  ```sh
  cd $working_dir/nebula/.git/hooks
  