docs(readme): include badges

Author: nivekcode

README.md

@@ -1,7 +1,18 @@
+[![Travis build badge](https://img.shields.io/travis/kreuzerk/ng-sortgrid.svg)](https://travis-ci.org/kreuzerk/ng-sortgrid)
+[![codecov](https://codecov.io/gh/kreuzerk/ng-sortgrid/branch/master/graph/badge.svg)](https://codecov.io/gh/kreuzerk/ng-sortgrid)
+[![angular7](https://img.shields.io/badge/angular%206%20ready-true-green.svg)]()
+
 ![Logo](./projects/ng-sortgrid-demo/src/assets/logo-new.png)
 
 ![Grid demo](./projects/ng-sortgrid-demo/src/assets/grid-demo.gif)
 
+Read the README or just simply check out our demo at: https://kreuzerk.github.io/ng-sortgrid/ 
+
+- [Getting started](#getting-started)
+  - [Download the module](#download-the-module)
+  - [Apply the directive](#apply-the-directive)
+  - [React on changes](#react-on-changes)
+
 # Getting started
 ## Download the module