Add notice and link to NT drafting page

[Nateowami]

This change is 

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 81.83%. Comparing base (1f825b5) to head (808d93a).
⚠️ Report is 1 commits behind head on master.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #3694   +/-   ##
=======================================
  Coverage   81.82%   81.83%           
=======================================
  Files         619      619           
  Lines       38618    38620    +2     
  Branches     6293     6317   +24     
=======================================
+ Hits        31601    31603    +2     
+ Misses       6056     6043   -13     
- Partials      961      974   +13     

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[pmachapman]

@pmachapman reviewed 4 files and all commit messages, and made 1 comment.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on Nateowami).