Changed the README to a markdown file.

I have changed the README to README.md and put in meaningful headings and subheadings, that make the file more readable and also understandable.

Further, I was able to get a table for displaying the options and their utilities. I am attaching two photos below for your reference :- 

![image](https://cloud.githubusercontent.com/assets/3668034/2989833/35b4b666-dc69-11e3-9fa2-dfaae4555945.png)

![image](https://cloud.githubusercontent.com/assets/3668034/2989864/72ed1db6-dc69-11e3-82f2-78fe86849da0.png)