chore: add note about v2 development

[markphelps]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 64.86%. Comparing base (45e877b) to head (341d4b3).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3833      +/-   ##
==========================================
+ Coverage   64.82%   64.86%   +0.03%     
==========================================
  Files         171      171              
  Lines       17397    17397              
==========================================
+ Hits        11278    11284       +6     
+ Misses       5419     5415       -4     
+ Partials      700      698       -2     

Flag	Coverage Δ
unittests	64.86% <ø> (+0.03%)	⬆️

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