Readme updates

Opened for discussion...
[Markdown](https://guides.github.com/features/mastering-markdown/) will create an ordered list from this markup (note the space before each 1.):

```markdown
 1. make a fork of the project
 1. write some code (with tests please!) 
 1. open a Pull Request	
 1. bask in the warm fuzzy Open Source hug from us
```