html-lang-require should allow just language (not require region) #652
Description
Describe the bug
HTMLHint 0.15.0 adds the html-lang-require rule. This requires both a language and a region to be set, however it is perfectly valid to use just a language on a webpage, for example <html lang="en"> should be marked as valid. The region subtag is optional.
REF:
- https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/lang
- https://en.wikipedia.org/wiki/IETF_language_tag
To Reproduce
Steps to reproduce the behavior:
Run htmlhint on a webpage with <html lang="en">
Screenshots
cc @baleyko