Add Ansel and Jason to AUTHORS

[kemitchell]

@anseljh, @jboehmig: Might each of you send me a pull request adding
yourselves to the AUTHORS file? Doing so is the easiest way I know to
keep record that all contributors license their contributions CC0-1.0.

@anseljh, for you, a line like:

Ansel Halliburton <ansel@krinternetlaw.com>

@jboehmig: You might do:

Jason Boehmig <jason@ironclad.ai> (https://ironclad.ai) [Ironclad, Inc.]

I will insist that contributors make similar changes for new PRs going
forward. That we we've a clear record that we're copyright clean.

[kemitchell]

@jboehmig: If you can't get to adding yourself to AUTHORS, might you give me permission to add a commit doing so in your name?