Still keep a simple docs structure

So we can continue linking it from the dev-docs, so we can innclude it
like every other bundle.

README.md

@@ -2,15 +2,4 @@
 
 [GitLab](https://gitlab.tugraz.at/dbp/relay/dbp-relay-core-bundle) | [Packagist](https://packagist.org/packages/dbp/relay-core-bundle)
 
-The core bundle is the central bundle that needs to be installed in every Relay API
-gateway and also is a dependency of every other API bundle.
-
-* It provides functionality that is commonly needed by API bundles (error handling,
-  logging, etc)
-* It integrates the auth bundle with the Symfony security system
-* It provides console commands that API bundles can subscribe to
-* It configures all dependencies to our needs (api-platform, symfony, etc.)
-* and more ...
-
-For more information on how to configure and interface with the core bundle see
-the [Developer Guide](https://dbp-demo.tugraz.at/dev-guide/relay/dev/)
+Docs: see <https://gitlab.tugraz.at/dbp/relay/dbp-relay-core-bundle/-/tree/main/docs>
\ No newline at end of file

docs/index.md

+# About
+
+The core bundle is the central bundle that needs to be installed in every Relay API
+gateway and also is a dependency of every other API bundle.
+
+* It provides functionality that is commonly needed by API bundles (error handling,
+  logging, etc)
+* It integrates the auth bundle with the Symfony security system
+* It provides console commands that API bundles can subscribe to
+* It configures all dependencies to our needs (api-platform, symfony, etc.)
+* and more ...
+
+For more information on how to configure and interface with the core bundle see
+the [Developer Guide](https://dbp-demo.tugraz.at/dev-guide/relay/dev/)
\ No newline at end of file