DOC: separator update

[babenek]

Description

Please include a summary of the change and which is fixed.

• Add samples
• Fix separator for doc_credential rule
• BM ref update

How has this been tested?

Please describe the tests that you ran to verify your changes.

• UnitTest
• Benchmark

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.38%. Comparing base (22bc792) to head (c53a8f1).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #801   +/-   ##
=======================================
  Coverage   92.38%   92.38%           
=======================================
  Files         142      142           
  Lines        5751     5751           
  Branches      932      932           
=======================================
  Hits         5313     5313           
  Misses        285      285           
  Partials      153      153           

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