README.md in emailbutler-0.6.1 vs README.md in emailbutler-0.7.0

@@ -1,8 +1,8 @@
 # Emailbutler
 Simple email tracker for Ruby on Rails applications.
-Emailbutler allows you to track delivery status of emails sent by your app.
+Emailbutler allows you to track delivery status of emails sent by your app through Sendgrid and/or SMTP2GO.
 
 There are situations when you need to check whether a certain letter or certain type of letters was successfully sent from the application, and through the UI of some providers you can try to find such a letter by the recipient or the subject of the letter, but sometimes it's not enough.
 
 Emailbutler allows you to monitor the sending of letters, collects notifications from providers about the success of delivery and adds an UI for monitoring deliveries with filtering by recipients, mailers and actions.
 
@@ -34,10 +34,11 @@
 Emailbutler.configure do |config|
   config.adapter = Emailbutler::Adapters::ActiveRecord.new
   config.ui_username = 'username'
   config.ui_password = 'password'
   config.ui_secured_environments = ['production']
+  config.skip_before_actions = %i[verify_authenticity_token]
 end
 ```
 
 ### Routes
 
@@ -57,21 +58,24 @@
 
   def create
     ... you can add some logic here
 
     ::Emailbutler::Webhooks::Receiver.call(
-      user_agent: ::Emailbutler::Webhooks::Receiver::SENDGRID_USER_AGENT,
+      user_agent: request.headers['HTTP_USER_AGENT'],
       payload: receiver_params.to_h
     )
 
     head :ok
   end
 
   private
 
   def receiver_params
-    params.permit('_json' => %w[smtp-id event timestamp sg_message_id])
+    params.permit(
+      'event', 'sendtime', 'message-id',
+      '_json' => %w[event timestamp smtp-id sg_message_id]
+    )
   end
 end
 ```
 
 ### UI styles
@@ -100,9 +104,17 @@
 
 #### Sendgrid
 
 - go to [Mail settings](https://app.sendgrid.com/settings/mail_settings),
 - turn on Event Webhook,
+- in the HTTP POST URL field, paste the URL to webhook controller of your app,
+- select all deliverability data,
+- save settings.
+
+#### SMTP2GO
+
+- go to [Mail settings](https://app-eu.smtp2go.com/settings/webhooks),
+- turn on Webhooks,
 - in the HTTP POST URL field, paste the URL to webhook controller of your app,
 - select all deliverability data,
 - save settings.
 
 ## Usage