Addendum for PEP 722 to use TOML

[ofek (Ofek Lev)]

Before I address all the comments I would like to clarify this:

@brettcannon

Paul already wrote a PEP that can be referenced from Ofek’s PEP, which means the PEP can very much focus on the concrete proposal instead of the reason for wanting any of this

Did I misinterpret what Brett said and I should actually start the PEP from scratch?