fix(README.md): add coverage badge

Author: a8m

README.md

@@ -3,10 +3,11 @@ angular-local-storage
 
 An Angular module that gives you access to the browsers local storage, **v0.1.3**
 
-[![Build Status](https://secure.travis-ci.org/grevory/angular-local-storage.png?branch=master)](https://travis-ci.org/grevory/)
+[![Build Status](https://secure.travis-ci.org/grevory/angular-local-storage.png?branch=master)](https://travis-ci.org/grevory/) [![Coverage Status](https://img.shields.io/coveralls/grevory/angular-local-storage.svg)](https://coveralls.io/r/grevory/angular-local-storage?branch=master)
 
 ##Table of contents:
 - [Get Started](#get-started)
+- [Development](#development)
 - [Configuration](#configuration)
  - [setPrefix](#setprefix)
  - [setStorageType](#setstoragetype)
@@ -319,19 +320,22 @@ myApp.controller('MainCtrl', function($scope, localStorageService) {
 Check out the full demo at http://gregpike.net/demos/angular-local-storage/demo.html
 
 ##Development:
+* Don't forget about tests.
+* If you planning add some feature please create issue before.
+
 Clone the project: 
-```bash
+```sh
 $ git clone https://github.com/<your-repo>/angular-local-storage.git
 $ npm install
 $ bower install
 ```
 Run the tests:
-```bash
+```sh
 $ grunt test
 ```
 **Deploy:**<br/>
 Run the build task, update version before(bower,package)
-```bash
+```sh
 $ grunt dist
 $ git tag 0.*.*
 $ git push origin master --tags