Update 007-authorizer.md

Signed-off-by: Keith Wall <[email protected]>

Author: k-wall

proposals/007-authorizer.md

@@ -8,7 +8,7 @@ The Authorizer filter gives the ability to add authorisation checks into a Kafka
 
 It is possible for a filter to implement its own business rules, enforcing authorization in some custom manner.  However,
 that approach does not have good separation of concerns.  Authorization checks are an orthogonal concern, and security
-best practice is to separates them from business logic.
+best practice is to separate their enforcement from business logic.
 
 ## Motivation