docs(tvix/eval): builtins.md: note implementation status r/5225

We're getting close to the finish line, folks.

I went through the list of builtins and there are only 33 that
remain unimplemented.  I've marked them, and indicated which are
ready to be implemented vs which are waiting for other things.

We can delete this column from the table once everything is
implemented.

Signed-off-by: Adam Joseph <adam@westernsemico.com>
Change-Id: Idfaef93283536288b12e59aef5c3e1cd139bd133
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7140
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>

0 files changed, 0 insertions, 0 deletions