Change the readme to use markdown instead of being a regular .txt file.
Fix formatting within the Readme.md. A little more.

Properly escaped the underscores in the Windows registry notation.
Update the Readme.md with suggestions and improvements by neobrain.

Updated the "Project Site" link to point to the github page. Also added links to the forums and wiki. Also fixed some list indentation in the system requirements.
Move the recommended CPU/GPU sentences onto their own indented line in the system requirements list (thanks go to neobrain for pointing this out).
Add a period in the system requirements list for consistency.
Merge pull request #6 from lioncash/readme-markdown

Change the plain-text Readme.txt to a markdown-using Readme.md.