docs: update docfx footer with copyright and add git repository URL

Author: aalmada

docfx.json

@@ -73,12 +73,13 @@
             "_keywords": "bookstore, event-sourcing, marten, wolverine, aspire, blazor, cqrs, dotnet",
             "_enableSearch": true,
             "_enableNewTab": true,
-            "_appFooter": "<span>Made with <a href=\"https://dotnet.github.io/docfx\">docfx</a></span>",
+            "_appFooter": "<span>© 2025 Antao Almada | Licensed under <a href=\"https://github.com/aalmada/BookStore/blob/main/LICENSE\">MIT License</a> | Made with <a href=\"https://dotnet.github.io/docfx\">docfx</a></span>",
             "_gitContribute": {
                 "repo": "https://github.com/aalmada/BookStore",
                 "branch": "main"
             },
-            "_gitUrlPattern": "github"
+            "_gitUrlPattern": "github",
+            "_gitUrl": "https://github.com/aalmada/BookStore"
         },
         "globalMetadataFiles": [],
         "fileMetadataFiles": [],