updates to readme
updates to readme

agfor/chipy.org,chicagopython/chipy.org,tanyaschlusser/chipy.org,chicagopython/chipy.org,tanyaschlusser/chipy.org,agfor/chipy.org,tanyaschlusser/chipy.org,agfor/chipy.org,chicagopython/chipy.org,chicagopython/chipy.org