README.md in twilio-ruby-5.46.0 vs README.md in twilio-ruby-5.46.1

@@ -32,17 +32,17 @@
 ## Installation
 
 To install using [Bundler][bundler] grab the latest stable version:
 
 ```ruby
-gem 'twilio-ruby', '~> 5.46.0'
+gem 'twilio-ruby', '~> 5.46.1'
 ```
 
 To manually install `twilio-ruby` via [Rubygems][rubygems] simply gem install:
 
 ```bash
-gem install twilio-ruby -v 5.46.0
+gem install twilio-ruby -v 5.46.1
 ```
 
 To build and install the development branch yourself from the latest source:
 
 ```bash
@@ -62,9 +62,23 @@
 account_sid = 'ACxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'
 auth_token = 'yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy'
 
 # set up a client to talk to the Twilio REST API
 @client = Twilio::REST::Client.new account_sid, auth_token
+```
+
+### Use An API Key
+
+```ruby
+require 'twilio-ruby'
+
+# put your own credentials here
+account_sid = 'ACxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'
+api_key_sid = 'zzzzzzzzzzzzzzzzzzzzzz'
+api_key_secret = 'yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy'
+
+# set up a client to talk to the Twilio REST API using an API Key
+@client = Twilio::REST::Client.new api_key_sid, api_key_secret, account_sid
 ```
 
 ### Specify a Region and/or Edge
 
 To take advantage of Twilio's [Global Infrastructure](https://www.twilio.com/docs/global-infrastructure), specify the target Region and/or Edge for the client: