Update README.md

Author: Skyler Shaw

README.md

@@ -35,7 +35,7 @@ intercom = Intercom::Client.new(app_id: 'my_app_id', api_key: 'my_api_key')
 You can get your `app_id` from the URL when you're logged into Intercom (it's the alphanumeric just after `/apps/`) and your API key from the API keys integration settings page (under your app settings - integrations in Intercom).
 
 ```ruby
-# With an OAuth token:
+# With an OAuth or Personal Access token:
 intercom = Intercom::Client.new(token: 'my_token')
 ```