Added fork description

README.md

@@ -3,4 +3,7 @@ Pico
 
 Pico is a stupidly simple, blazing fast, flat file CMS. See http://pico.dev7studios.com for more info.
 
+This fork allows Pico parse content using Twig (.html files).
+
+
 [![I Love Open Source](http://www.iloveopensource.io/images/logo-lightbg.png)](http://www.iloveopensource.io/projects/524c55dcca7964c617000756)