PEP 545: Update language tag guidelines

[m-aciek]

Cover usage of script subtags in IETF language tags.

Previous (current) version mentions only region subtags, whereas script subtags can cover wider audience, while still being correct. For example Django documentation use zh-hans for Chinese written in simplified script.

cc @JulienPalard @methane @vstinner

• Change is either:
  • To an Active Process PEP
  • To an Accepted or Final PEP, with Steering Council approval
  • To fix an editorial issue (markup, typo, link, header, etc)
• PR title prefixed with PEP number (e.g. PEP 123: Summary of changes)

[read-the-docs-community]

Documentation build overview

📚 pep-previews | 🛠️ Build #33224185 | 📁 Comparing 49141e0 against latest (37914ba)

  🔍 Preview build  

1 file changed

± pep-0545/index.html

[StanFromIreland]

I think we’ve generally decided to leave the PEP for now (as it also needs many other changes), and update the devguide instead.

[hugovk]

This should be discussed in another place first, such as https://github.com/python/docs-community/issues or https://discuss.python.org/c/documentation/26.