README.md in fullcontact-0.14.0 vs README.md in fullcontact-0.15.0

@@ -7,12 +7,12 @@
 [![Code Climate](https://codeclimate.com/github/fullcontact/fullcontact-api-ruby/badges/gpa.svg)](https://codeclimate.com/github/fullcontact/fullcontact-api-ruby)
 [![Test Coverage](https://codeclimate.com/github/fullcontact/fullcontact-api-ruby/badges/coverage.svg)](https://codeclimate.com/github/fullcontact/fullcontact-api-ruby)
 
 Changes
 -------
-- 0.14.0
-    - Remove `plissken` gem to support Rails 5 (#42)
+- 0.15.0 - Add header-based auth via `config.auth_type = :header` control.
+- 0.14.0 - Remove `plissken` gem to support Rails 5 (#42)
 - 0.13.0
     - Raise `ArgumentError` if query by Facebook ID/username is used.
     - Remove deprecated messages.
 - 0.12.0 - `include_headers_in_response = true` includes response headers in returned payload
  - Accessible as `http_headers` in response. Also accessible on thrown errors (e.g. RateLimited)
@@ -43,11 +43,11 @@
 
     # This could go in an initializer
     FullContact.configure do |config|
         config.api_key = 'fullcontact_api_key_goes_here'
     end
-	
+
     # Get information about an email address
     person = FullContact.person(email: '[e-mail]')
 ```
 All returned values are Hashie structs. You can access fields as if they were fields:
 
@@ -62,25 +62,34 @@
 ```ruby
     # Get person's family_name
     person.to_hash['contact_info']['family_name']
      => "Lorang"
 ```
+Authentication is done through query parameters by default. If you want to use headers instead:
 
+```ruby
+    # This could go in an initializer
+    FullContact.configure do |config|
+        config.api_key = 'fullcontact_api_key_goes_here'
+        config.auth_type = :headers # :header or :query
+    end
+```
+
 There's other ways you can query the Person API:
 ```ruby
     # Get information about an email address, organized by hashes vs. lists
     person2 = FullContact.person(email: '[e-mail]', style: 'dictionary')
-    
+
     # You can pass in any arbitrary parameters the Person API supports
     person3 = FullContact.person(email: '[e-mail]', style: 'dictionary', webhookUrl: 'https://...')
-    
+
     # Get information about a twitter handle
     person4 = FullContact.person(twitter: "bartlorang")
-    
+
     # Get information from a phone number
     person6 = FullContact.person(phone:[phone])
-    
+
     # Get information about a twitter and ensure a 30s socket open timeout and a 15s socket read timeout
     # Can throw a Faraday::Error::TimeoutError if timeouts are exceeded
     person7 = FullContact.person({:twitter => "bartlorang"}, {:request => {:timeout => 15, :open_timeout => 30}})
 
 ```
@@ -92,11 +101,11 @@
         config.skip_rubyize = true
     end
 
     person8 = FullContact.person(email: "[e-mail]")
 
-    => #<Hashie::Mash contactInfo=#<Hashie::Mash chats=[#<Hashie::Mash client="gtalk" handle="[e-mail]">, 
+    => #<Hashie::Mash contactInfo=#<Hashie::Mash chats=[#<Hashie::Mash client="gtalk" handle="[e-mail]">,
     #<Hashie::Mash client="skype" handle="bart.lorang">] familyName="Lorang" fullName="Bart Lorang" givenName="Bart...
 ```
 
 You can also query the Company API
 ```ruby
@@ -105,10 +114,10 @@
 
     company1.organization.name
      => "FullContact Inc."
 ```
 
-	
+
 Contributions
 -------------
 A full list of contributors can be found in
 [GitHub](https://github.com/fullcontact/fullcontact-api-ruby/graphs/contributors)