docs: escape and unescape

[ovarn]

The doc for the escape and unescape doesn't match the implementation:

validator.js/src/lib/escape.js

Lines 11 to 12 in b958bd7

	.replace(/\\/g, '\')
	.replace(/`/g, '`'));

validator.js/src/lib/unescape.js

Lines 10 to 11 in b958bd7

	.replace(/\/g, '\\')
	.replace(/`/g, '`')

Checklist

• PR contains only changes related; no stray files, etc.
• README updated (where applicable)
• Tests written (where applicable)
• References provided in PR (where applicable)

[codecov]

Codecov Report

All modified lines are covered by tests ✅

Comparison is base (b958bd7) 99.95% compared to head (3ab8fde) 99.95%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2325      +/-   ##
==========================================
- Coverage   99.95%   99.95%   -0.01%     
==========================================
  Files         107      107              
  Lines        2454     2449       -5     
  Branches      619      619              
==========================================
- Hits         2453     2448       -5     
  Partials        1        1              

see 3 files with indirect coverage changes

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[ovarn]

Sorry @WikiRik, I unintentionally clicked the "Re-request review".