README.md in api_proxy-0.2.7 vs README.md in api_proxy-0.2.8

@@ -32,9 +32,11 @@
   config.api_secret = ENV['SERVICE_API_SECRET']
 
   config.api_url = 'http://localhost:3002/api/v1'
 
   config.request_starts_with = '/_some_key'
+
+  config.allowed_headers = %w[content-type content-length]
 end
 ```
 
 ```ruby
 # config/application.rb