linting: added docs and removed trailing whitespaces

backend/project/endpoints/index.py

@@ -1,10 +1,22 @@
+"""
+This is the index endpoint file. It contains the index endpoint of the API as specified by OpenAPI.
+"""
+
 from flask import Blueprint
 from flask_restful import Resource
 
 index_bp = Blueprint("index", __name__)
 
 class Index(Resource):
+    """
+    Subclass of restfull Resource, used to define the index endpoint of the API.
+    """
+
     def get(self):
+        """
+        Implementation of the GET method for the index endpoint. Returns the OpenAPI object.
+        """
+
         return {"Message": "Hello World!"}
-    
-index_bp.add_url_rule("/", view_func=Index.as_view("index"))
+
+index_bp.add_url_rule("/", view_func=Index.as_view("index"))