Updated module READMEs with current default values

modules/default/newsfeed/README.md

@@ -53,6 +53,7 @@ The following properties can be configured:
 					{
 						title: "New York Times",
 						url: "http://www.nytimes.com/services/xml/rss/nyt/HomePage.xml",
+						encoding: "UTF-8" //ISO-8859-1
 					}
 				]</code>
 			</td>