Updates based on suggestions

Author: johnsimons

servicepulse/usage.md

@@ -35,7 +35,7 @@ The report file must be provided to Particular upon request, it is **not** autom
 
 ## Viewing usage summary
 
-At any time the system usage can be viewed on the Usage page.
+At any time, the system usage can be viewed on the Usage page.
 This page has two tabs:
 
 - [Detected endpoints](#viewing-usage-summary-detected-endpoints)
@@ -91,11 +91,11 @@ Not an NServiceBus endpoint. These are broker queues or other messaging infrastr
 
 #### Gateway or Bridging Endpoint
 
-This is an infrastructure endpoint used by the Particular Platform<
+This is either part of the [Gateway](/nservicebus/gateway/) infrastructure or part of the [Messaging Bridge](/nservicebus/bridge/) infrastructure.
 
-#### Service Control Endpoint
+#### Particular Platform Endpoint
 
-This is an infrastructure endpoint used by the Particular Platform<
+This is a Particular Platform infrastructure endpoint.
 
 ### Bulk endpoint updates