fixing grammatical mistakes

Author: championshuttler

README.md

@@ -1,12 +1,11 @@
 # create-web-ext
 
-`create-web-ext` is a scaffolding tool for browser extensions. It takes input few parameters and outputs a complete scaffolded broswer extenions project.
+[`create-web-ext`](https://www.npmjs.com/package/create-web-ext/) is a scaffolding tool for browser extensions. It takes input few parameters and outputs a complete scaffolded browser extension project.
 
-## Installation from source
+## Requirements
 
-You'll need:
-* [Node.js](https://nodejs.org/en/), 6.0.0 or higher
-* [npm](https://www.npmjs.com/), 3.0.0 or higher is recommended
+* You need [Node.js](https://nodejs.org/en/) , 6.0.0 or higher
+* Install [npm](https://www.npmjs.com/) , 3.0.0 or higher is recommended
 
 Optionally, you may like:
 * [nvm](https://github.com/creationix/nvm), which helps manage node versions