diff --git a/examples/graphiql.py b/examples/graphiql.py
index 8363203..51f0514 100644
--- a/examples/graphiql.py
+++ b/examples/graphiql.py
@@ -15,6 +15,8 @@ class User:
 class Query:
     @strawberry.field
     def user(self) -> Optional[User]:
+        # self.context is an dict with headers, query, and params properties
+        # headers and query are dict and params an array with route parameters
         return User(name="Hello")
 
 
diff --git a/examples/middleware.py b/examples/middleware.py
index dd4de03..77209a0 100644
--- a/examples/middleware.py
+++ b/examples/middleware.py
@@ -11,6 +11,7 @@ async def auth(res, req, data=None):
     user = await get_user(req.get_header('authorization'))
     if not user: 
         res.write_status(403).end("not authorized")
+        #returning Falsy in middlewares just stop the execution of the next middleware
         return False
 
     #returns extra data