added npm version badge (thanks http://badge.fury.io)

README.md

@@ -2,6 +2,7 @@ metalsmith-date-in-filename: incorporate date info in filename onto file metadat
 ====
 
 [![Build Status](https://travis-ci.org/sanx/metalsmith-date-in-filename.svg?branch=master)](https://travis-ci.org/sanx/metalsmith-date-in-filename)
+[![npm version](https://badge.fury.io/js/metalsmith-date-in-filename.svg)](http://badge.fury.io/js/metalsmith-date-in-filename)
 
 Installation
 ----
@@ -17,6 +18,12 @@ Usage
         .use(dateInFilename({override: true})) // can be "dateInFilename(true)", which is equivalent
         .build();
 
+... alternatively, you can pass just a boolean to the plugin, and the `override` setting will be set to it:
+
+    ...
+        .use(dateInFilename(true))
+    ...
+
 
 CLI Usage
 ----
@@ -27,7 +34,7 @@ CLI Usage
         }
     }
 
-    
+
 License
 ----
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "metalsmith-date-in-filename",
-  "version": "0.0.11",
+  "version": "0.0.12",
   "description": "Incorporate date information on filename into metadata.",
   "main": "index.js",
   "scripts": {