Draft of TOCC supporting tool requirements

Hi All,
As discussed at our last TOCC meeting, I've put together an initial draft
of requirements for a standards collaboration/convergence tool. I wasn't
sure of the best location, so for now the document is available in the main
directory of our GitHub repository here
<https://github.com/w3c/tocc/blob/master/requirements_spec.md>. Please have
a look and feel free to add or revise to the draft. I believe Ted can grant
authorization to the repository if anyone needs it.

Thanks and look forward to meeting with you all next week.

Megan