Updated Readme
Updated Readme

Readme now lists RSS feeds as a feature.

cdvv7788/pinax-blog,swilcox/pinax-blog,swilcox/pinax-blog,easton402/pinax-blog,miurahr/pinax-blog,salamer/pinax-blog,easton402/pinax-blog,pinax/pinax-blog,pinax/pinax-blog,pinax/pinax-blog,miurahr/pinax-blog