fix: Use repository provider in MkDocs site_url and repo_url

Co-authored-by: Timothée Mazzucotelli <pawamoy@pm.me>

project/mkdocs.yml.jinja

@@ -1,7 +1,7 @@
 site_name: "[[ project_name ]]"
 site_description: "[[ project_description ]]"
-site_url: "https://[[ repository_namespace ]].github.io/[[ repository_name ]]"
-repo_url: "https://github.com/[[ repository_namespace ]]/[[ repository_name ]]"
+site_url: "https://[[ repository_namespace ]].[[ repository_provider.rsplit('.', 1)[0] ]].io/[[ repository_name ]]"
+repo_url: "https://[[ repository_provider ]]/[[ repository_namespace ]]/[[ repository_name ]]"
 repo_name: "[[ repository_namespace ]]/[[ repository_name ]]"
 
 nav:
@@ -49,4 +49,4 @@ plugins:
     watch:
     - src/[[ python_package_import_name ]]
 - macros:
-    module_name: docs/macros
+    module_name: docs/macros