Update README.md with instructions for creating new recipes.
Update README.md with instructions for creating new recipes.

Signed-off-by: Brian de Alwis <48f3f89ac3fac5337b47faa8a2f93eb8b298844e@mt.ca>

DataInMotion/ebr,DataInMotion/ebr,DataInMotion/ebr,fwaibel/ebr,fwaibel/ebr,fwaibel/ebr,DataInMotion/ebr,fwaibel/ebr