docs: service docstrings

Issue: #13

src/service/router.py

@@ -1,9 +1,11 @@
 """
-Router endpoints for <this module>
+Router endpoints for the services module
 
 Endpoints:
- - List: Description
- - Endpoints: Description
+ - [GET](/): [root user]: Get a list of all services(id, name)
+ - [POST](/): [super admin]: Register a new service(name) on the hub, returns the API key for the service to access the hub.
+ - [PATCH](/key): [super_admin]: Refreshes the API key for a service(id), returning a new one.
+ - [DELETE](/): [super_admin]: Removes a service(id) from the hub.
 """
 from fastapi import APIRouter, status
 from psycopg.errors import UniqueViolation