Support for Admonition Syntax

[ZhiyuanChen]

Is your feature request related to a problem? Please describe.

The Admonition extension adds rST-style admonitions to Markdown documents.

This extension is included in the standard Markdown library, and has been widely in used in other repositories such as MkDocs

Supporting admonition syntax would let users highlight important stuff, like license (agreement), etc.

Describe the solution you'd like

Add support for admonition syntax.

Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.

Nill

Additional context
Add any other context or screenshots about the feature request here.

[julien-c]

i think we support GitHub-style notes

This syntax: https://github.com/orgs/community/discussions/16925

cc @mishig25

[ZhiyuanChen]

i think we support GitHub-style notes

This syntax: https://github.com/orgs/community/discussions/16925

I looked into the syntax, and it's really nice.

However, as I'm trying to write one md for both model card and in documentation, while it's possible for me to extend mkdocs, it is still less convenience.

Also, the GitHub-style notes lacks capabilities for i18n.

!!! Warning "警告"

I could use this syntax customise the name of the notes, but not in GitHub syntax.

I think adding support for admonition can still be a welcome addition, but not a mandatory one.