Fix bug?

.github/workflows/cd.yml

@@ -20,6 +20,7 @@ jobs:
         rm -rf ./docs
         echo "<meta http-equiv=\"refresh\" content=\"0; url=build_wheel\">" > target/doc/index.html
         cp -r target/doc ./docs
+        git worktree add gh-pages
         git config user.name "Deploy from CD"
         git config user.email ""
         git add .