Merge pull request suminb#2 from dhimmel/patch-1

Doc: add badges and update markdown in README

README.md

@@ -1,18 +1,23 @@
+[![Build Status](https://travis-ci.org/suminb/base62.svg?branch=master)](https://travis-ci.org/suminb/base62)
+
 A Python module for base62 encoding. Ported from PHP code that I wrote in mid-2000, which can be found on [here](http://blog.suminb.com/archives/558).
 
-Installation
-------------
+## Installation
 
-    sudo pip install pybase62
+[![PyPI](https://img.shields.io/pypi/v/pybase62.svg)](https://pypi.python.org/pypi/pybase62)
 
+```
+pip install pybase62
+```
 
-Usage
-------
+## Usage
 
-    >>> import base62
+```python
+>>> import base62
 
-    >>> base62.encode(34441886726)
-	'base62'
+>>> base62.encode(34441886726)
+'base62'
 
-	>>> base62.decode('base62')
-    34441886726
+>>> base62.decode('base62')
+34441886726
+```