README.md in mailtrap-1.1.1 vs README.md in mailtrap-1.2.0

@@ -28,11 +28,11 @@
 
 ```ruby
 require 'mailtrap'
 
 # create mail object
-mail = Mailtrap::Sending::Mail.new(
+mail = Mailtrap::Mail::Base.new(
   from: { email: '[e-mail]', name: 'Mailtrap Test' },
   to: [
     { email: '[e-mail]' }
   ],
   subject: 'You are awesome!',
@@ -48,11 +48,11 @@
 
 ```ruby
 require 'mailtrap'
 require 'base64'
 
-mail = Mailtrap::Sending::Mail.new(
+mail = Mailtrap::Mail::Base.new(
   from: { email: '[e-mail]', name: 'Mailtrap Test' },
   to: [
     { email: '[e-mail]', name: 'Your name' }
   ],
   cc: [
@@ -81,9 +81,31 @@
 data = File.open('/path/to/image.jpg').read
 encoded = Base64.encode64(data).gsub(/\n/,"")
 
 mail.add_attachment(content: encoded, filename: 'image.png')
 
+client = Mailtrap::Sending::Client.new(api_key: 'your-api-key')
+client.send(mail)
+```
+
+### Using email template
+
+```ruby
+require 'mailtrap'
+
+# create mail object
+mail = Mailtrap::Mail::FromTemplate.new(
+  from: { email: '[e-mail]', name: 'Mailtrap Test' },
+  to: [
+    { email: '[e-mail]' }
+  ],
+  template_uuid: '2f45b0aa-bbed-432f-95e4-e145e1965ba2',
+  template_variables: {
+    'user_name' => 'John Doe'
+  }
+)
+
+# create client and send
 client = Mailtrap::Sending::Client.new(api_key: 'your-api-key')
 client.send(mail)
 ```
 
 ### ActionMailer