README.md in faraday_middleware-aws-signers-v4-0.1.2 vs README.md in faraday_middleware-aws-signers-v4-0.1.3

@@ -35,10 +35,10 @@
     # If you use the credentials file:
     #credentials: Aws::SharedCredentials.new.credentials,
     service_name: 'apigateway',
     region: 'us-east-1'
 
-  faraday.response :json, :content_type => /\bjson$/
+  faraday.response :json, :content_type => /\bjson\b/
   faraday.response :raise_error
 
   faraday.adapter Faraday.default_adapter
 end