Cyrillic anchor links doesn't works

[ulbwa]

If you use the headers in Cyrillic, the anchor links written to them will not scroll the page to the desired h tag.

[latin anchor link works](#latin-header)

[cyrillic anchor link doesn't works](#кириллический-заголовок)

# Latin header

some text
 
# Кириллический заголовок

some text

[zerodevx]

Thanks for the report - I should really look into supporting non-latin characters.

[zerodevx]

Marking this as an enhancement because slugification is in the remit of markedjs: https://marked.js.org/using_pro#renderer

Might add first class support in a future release.