Update README

README.md

@@ -379,3 +379,14 @@ MandrillMailer.configure do |config|
   }
 end
 ```
+
+## Rspec matcher
+
+# In spec/spec_helper.rb:
+```ruby
+  RSpec.configure do |config|
+    # ...
+    require "mandrill_mailer/rspec_helper"
+    config.include MandrillMailer::RSpecHelper
+  end
+```

lib/mandrill_mailer/rspec_helpers/mandrill_mailer_contains.rb

@@ -34,17 +34,14 @@
 #  to: '[email protected]',
 #  global_variables: {
 #    'FNAME' => 'John',
-#    'EVENT_TITLE' => 'Super Series',
-#    'EVENT_HREF' => event_url(event, auth_token: auth_token, host: host),
-#    'EVENTS_URL' => city_url(event.city, auth_token: auth_token, host: host),
 #    'START_TIME' => '10:45am EST / 7:45am PST',
 #    'VENUE' => 'Midtown Venue',
 #    'START_DATE' => 'Wednesday, 01/10/2018',
 #    'NEXT_EVENT_DATE' => nil,
 #    'MEMBER_FULL_NAME' => 'John Gates',
 #    'MEMBER_EMAIL' => '[email protected]'
 #  }
-#)
+# )
 #
 RSpec::Matchers.define :mandrill_email do |expected|
   class MailerContains < RSpec::Matchers::BuiltIn::BaseMatcher