chore: Update README with repository details and npm info

Clarified repository status and npm package information.

Author: danez

README.md

@@ -11,7 +11,7 @@
   <p>Use Webpack with Grunt.<p>
 </div>
 
-> The repository was moved out of the webpack organisation as decided in a meeting, and now resides under my personal user account.
+> The repository was moved out of the webpack organisation as decided in a meeting, and now resides under my personal user account. This is the official repo for the npm package `grunt-webpack`.
 
 <h2 align="center">Requirements</h2>
 
@@ -21,7 +21,7 @@
 
 <h2 align="center">Install</h2>
 
-Install this grunt plugin next to your project's [Gruntfile.js](http://gruntjs.com/getting-started). You also need to install webpack yourself, this grunt plugin does not install webpack itself. This is the official repo for the npm package `grunt-webpack`.
+Install this grunt plugin next to your project's [Gruntfile.js](http://gruntjs.com/getting-started). You also need to install webpack yourself, this grunt plugin does not install webpack itself.
 
 ```bash
 npm install webpack grunt-webpack --save-dev