Add high-level text layout docs; bump licensing version

[JimBobSquarePants]

Prerequisites

• I have written a descriptive pull-request title
• I have verified that there are no overlapping pull-requests open
• I have verified that I am following matches the existing coding patterns and practice as demonstrated in the repository. These follow strict Stylecop rules 👮.
• I have provided test coverage for my change (where applicable)

Description

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 84%. Comparing base (24b0b7f) to head (cd96b77).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files

@@          Coverage Diff          @@
##            main    #533   +/-   ##
=====================================
  Coverage     84%     84%           
=====================================
  Files        332     332           
  Lines      24666   24666           
  Branches    3610    3610           
=====================================
  Hits       20769   20769           
  Misses      3010    3010           
  Partials     887     887           

Flag	Coverage Δ
unittests	84% <ø> (ø)

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