docs: specify GitHub Pages URL for WML documentation

Updated Sphinx configuration to specify the GitHub Pages URL where the WML documentation will be hosted.

- Ensured the documentation will be correctly linked and accessible via GitHub Pages.

This update configures the documentation to be published and accessible at the specified GitHub Pages URL, improving accessibility for users.

.github/workflows/host_docs.yaml

@@ -52,6 +52,6 @@ jobs:
         uses: ad-m/[email protected]
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
-          branch: gh-pages
+          branch: wml-docs
           force: true
           directory: ./docs/build/html