Changed some button names. Added link in README

I changed some button names to it is now less confusing. I added a link to the step by step instructions on the README.md.
![screen shot 2014-03-02 at 8 23 56 82500 copy](https://f.cloud.github.com/assets/3900951/2304234/9023403a-a20e-11e3-9cbf-02e66f14f7b7.png)