README updates

Author: hamchapman

README.md

@@ -123,7 +123,7 @@ public enum AuthMethod {
 ```
 
 - `endpoint(authEndpoint: String)` - the client will make a `POST` request to the endpoint you specify with the socket ID of the client and the channel name attempting to be subscribed to
-- `authRequestBuilder(authRequestBuilder: AuthRequestBuilderProtocol)` - you specify an object that conforms to the `AuthRequestBuilderProtocol` (defined below), which must generate an `NSURLRequest` object that will be used to make the auth request
+- `authRequestBuilder(authRequestBuilder: AuthRequestBuilderProtocol)` - you specify an object that conforms to the `AuthRequestBuilderProtocol` (defined below), which must generate an `URLRequest` object that will be used to make the auth request
 - `inline(secret: String)` - your app's secret so that authentication requests do not need to be made to your authentication endpoint and instead subscriptions can be authenticated directly inside the library (this is mainly desgined to be used for development)
 - `authorizer(authorizer: Authorizer)` - you specify an object that conforms to the `Authorizer` protocol which must be able to provide the appropriate auth information
 - `noMethod` - if you are only using public channels then you do not need to set an `authMethod` (this is the default value)
@@ -662,7 +662,7 @@ Events can be bound to at 2 levels; globally and per channel. When binding to an
 
 ### Global events
 
-You can attach behaviour to these events regardless of the channel the event is broadcast to. The following is an example of an app that binds to new comments from any channel:
+You can attach behaviour to these events regardless of the channel the event is broadcast to. The following is an example of an app that binds to new comments from any channel (that you are subscribed to):
 
 #### Swift
 ```swift