docs(readme): added badges

README.md

@@ -1,12 +1,17 @@
 # mipher
+
+[![npm version](https://badge.fury.io/js/mipher.svg)](https://badge.fury.io/js/mipher)
+[![Github Releases](https://img.shields.io/github/release/mpaland/mipher.svg)](https://github.com/mpaland/mipher/releases)
+[![GitHub license](https://img.shields.io/badge/license-MIT-blue.svg)](https://raw.githubusercontent.com/mpaland/avl_array/master/LICENSE)
+
 **M**obile C**ipher** crypto library written in clean TypeScript
 
 
 ## Highligths and design goals
 There are a lot of crypto libs in JS around, but I needed a clean, lightweight, fast and simple lib for mobile devices in TypeScript. That's **mipher**.  
 A collection of common crypto algorithms, optimized for speed and size.
 
- - Usage of modern Uint8Array as message data types
+ - Usage of modern `Uint8Array` as message data types
  - Fast and simple, no dependencies
  - Own crypto random generator (using a FORTUNA implementation)
  - Extensive passing test suite