Fix install my project

Author: hkato

.github/workflows/gh-pages.yml

@@ -19,7 +19,9 @@ jobs:
         run: uv sync --all-extras --dev
 
       - name: Build MkDocs
-        run: uv run mkdocs build --verbose
+        run: |
+          uv pip install -e .
+          uv run mkdocs build --verbose
 
     #   - name: Deploy to GitHub Pages
     #     uses: peaceiris/actions-gh-pages@v3