Link OpenAPI

docs/development/backend.md

@@ -42,3 +42,8 @@ check the [Laravel documentation](https://laravel.com/docs/9.x/structure).
 > [!NOTE]
 > The schema of the central database is massive.
 > In `erd-editor` you can use `Right Click => Automatic Table Placement` to get nicer overview.
+
+## API docs
+
+<!-- prettier-ignore -->
+OpenAPI documentation for MPM can be found here: [OpenAPI docs](http://localhost:5173/openapi/index.html){target="_self"}