README.md in intercom-2.2.3 vs README.md in intercom-2.2.4

@@ -17,11 +17,11 @@
 
     gem install intercom
 
 Using bundler:
 
-    gem 'intercom', "~> 2.2.3"
+    gem 'intercom', "~> 2.2.4"
 
 ## Basic Usage
 
 ### Configure your access credentials
 
@@ -340,9 +340,10 @@
 Intercom::ServiceConnectionError
 Intercom::ResourceNotFound
 Intercom::BadRequestError
 Intercom::RateLimitExceeded
 Intercom::AttributeNotSetError # Raised when you try to call a getter that does not exist on an object
+Intercom::MultipleMatchingUsersError
 ```
 
 ### Rate Limiting
 
 Calling `Intercom.rate_limit_details` returns a Hash that contains details about your app's current rate limit.