Correcting blueprint documentation

issue #37

docs/blueprints.md

@@ -56,9 +56,7 @@ In this example, the registered routes in the `app.router` will look like:
 ```
 
 ## Middleware
-Using blueprints allows you to also register middleware exclusively for that
-blueprint, without interfering with other blueprints or routes registered
-directly on the application object.
+Using blueprints allows you to also register middleware globally.
 
 ```python
 @bp.middleware
@@ -75,8 +73,7 @@ async def halt_response(request, response):
 ```
 
 ## Exceptions
-Exceptions can also be applied exclusively to blueprints without interfering
-with other blueprints or routes registered on the application object.
+Exceptions can also be applied exclusively to blueprints globally.
 
 ```python
 @bp.exception(NotFound)