Added a README to the CLI folder
Added a README to the CLI folder

A README on how to create and use CLI commands.

IrregularShed/nodal,rlugojr/nodal,abossard/nodal,nsipplswezey/nodal,abossard/nodal,nsipplswezey/nodal,IrregularShed/nodal,keithwhor/nodal,nsipplswezey/nodal