[docs] Typo fixes (double the)

[Kielek]

Changes

Typo fixes (double the)

Merge requirement checklist

• CONTRIBUTING guidelines followed (license requirements, nullable enabled, static analysis, etc.)
• [ ] Unit tests added/updated
• [ ] Appropriate CHANGELOG.md files updated for non-trivial changes
• [ ] Changes in public API reviewed (if applicable)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.26%. Comparing base (6250307) to head (42d9799).
Report is 319 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5852      +/-   ##
==========================================
+ Coverage   83.38%   86.26%   +2.87%     
==========================================
  Files         297      257      -40     
  Lines       12531    11168    -1363     
==========================================
- Hits        10449     9634     -815     
+ Misses       2082     1534     -548     

Flag	Coverage Δ
unittests	?
unittests-Project-Experimental	86.25% <ø> (?)
unittests-Project-Stable	86.18% <ø> (?)

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see 221 files with indirect coverage changes