Add prior art and similar projects to README
Add prior art and similar projects to README

Refs #174
jfirebaugh/konacha,hugocorbucci/konacha,jfirebaugh/konacha,uken/konacha,hugocorbucci/konacha,uken/konacha,jfirebaugh/konacha,hugocorbucci/konacha,uken/konacha