README.md in twilio-ruby-3.12.3 vs README.md in twilio-ruby-3.13.0

@@ -55,35 +55,35 @@
 
 ### Send an SMS
 
 ``` ruby
 @client.messages.create(
-  :from => '[phone]',
-  :to => '[phone]',
-  :body => 'Hey there!'
+  from: '[phone]',
+  to: '[phone]',
+  body: 'Hey there!'
 )
 ```
 
 ### Send an MMS
 
 ``` ruby
 @client.messages.create(
-  :from => '[phone]',
-  :to => '[phone]',
-  :body => 'Hey there!',
-  :media_url => 'http://example.com/smileyface.jpg',
+  from: '[phone]',
+  to: '[phone]',
+  body: 'Hey there!',
+  media_url: 'http://example.com/smileyface.jpg'
 )
 ```
 
 ### Do Some Stuff With Calls
 
 ``` ruby
 # make a new outgoing call
 @call = @client.calls.create(
-  :from => '[phone]',
-  :to => '[phone]',
-  :url => 'http://example.com/call-handler',
+  from: '[phone]',
+  to: '[phone]',
+  url: 'http://example.com/call-handler'
 )
 
 # hangup a ringing call, but don't touch it if it's connected
 @call.cancel
 
@@ -107,17 +107,17 @@
 ### Buy a Phone Number
 
 ``` ruby
 # print some available numbers
 @numbers = @client.available_phone_numbers.get('US').local.list(
-  :contains => 'AWESOME'
+  contains: 'AWESOME'
 )
 @numbers.each {|num| puts num.phone_number}
 
 # buy the first one
 @number = @numbers[0].phone_number
[e-mail]_phone_numbers.create(:phone_number => @number)
[e-mail]_phone_numbers.create(phone_number: @number)
 ```
 
 ## Getting Started With Client Capability Tokens
 
 If you just need to generate a Capability Token for use with Twilio Client, you
@@ -156,11 +156,11 @@
 require 'rubygems' # not necessary with ruby 1.9 but included for completeness
 require 'twilio-ruby'
 
 # build up a response
 response = Twilio::TwiML::Response.new do |r|
-  r.Say 'hello there', :voice => 'alice'
-  r.Dial :callerId => '[phone]' do |d|
+  r.Say 'hello there', voice: 'alice'
+  r.Dial callerId: '[phone]' do |d|
     d.Client 'jenny'
   end
 end
 
 # print the result