Update downstream code generation and docs

[maskarb]

• update make commands for generating the downstream branch
• update the docs

[codecov]

Codecov Report

Merging #216 (25a3352) into main (8737fb0) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #216   +/-   ##
=======================================
  Coverage   89.19%   89.19%           
=======================================
  Files          11       11           
  Lines        2461     2461           
=======================================
  Hits         2195     2195           
  Misses        187      187           
  Partials       79       79           

Flag	Coverage Δ
unittests	89.19% <ø> (ø)

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see 1 file with indirect coverage changes

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[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
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