README.md in nightcrawler_swift-0.8.1 vs README.md in nightcrawler_swift-0.9.0

@@ -87,10 +87,14 @@
 
 ##### further explanation of configurations
 
 > max_age
 
-It will be used to define *Cache-Control:max-age=<value>* header.
+Defines the *Cache-Control:max-age=<value>* header.
+
+> content_encoding
+
+Defines the *Content-Encoding:<vaule>* header
 
 > retries
 
 The number of times to retry the request before failing. To disable this feature set it to __false__.