Repo: Indicate main branch is now for version 2 development

[tlsa]

The main branch may now have breaking changes compared to any previous releases.

Closes #208.

[codecov[bot]]

Codecov Report

Merging #209 (f7d7f53) into main (dc18555) will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #209   +/-   ##
=======================================
  Coverage   96.88%   96.88%           
=======================================
  Files           9        9           
  Lines        1637     1637           
  Branches      347      347           
=======================================
  Hits         1586     1586           
  Misses         24       24           
  Partials       27       27           

Flag	Coverage Δ
unittests	96.88% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

:mega: We’re building smart automated test selection to slash your CI/CD build times. Learn more