Update README.md

Author: riverside

README.md

@@ -1,12 +1,15 @@
 # React Grid Table
-*React grid table* is a simple React component which render a grid table with the help of Facebook's [React](http://facebook.github.io/react/) library.
+*React grid table* is a simple React component which render a grid table with the help of Facebook's [React](https://reactjs.org/) library.
+
+[![NPM](https://nodei.co/npm/react-grid-table.png)](https://nodei.co/npm/react-grid-table/)
+
 ## Installation
 ```sh
 npm install react-grid-table
 ```
 ## Blog post
-[React Grid Component](http://zinoui.com/blog/react-grid-component "React Grid Component")
+[React Grid Component](https://zinoui.com/blog/react-grid-component "React Grid Component")
 ## Demo
-[React Grid demo](http://zinoui.com/blog/react-grid-component#demo "React Grid demo")
+[React Grid demo](https://zinoui.com/blog/react-grid-component#demo "React Grid demo")
 ## License
 This repo is licensed under the MIT license