Consider aligning alert syntax with GitHub / GitLab

[serkonda7]

Quarkdown has extended markdown to support alerts wiki.

GitHub and GitLab also have such extensions but with a different syntax:

> [!NOTE]
> Useful information that users should know, even when skimming content.

> [!TIP]
> Helpful advice for doing things better or more easily.

> [!IMPORTANT]
> Key information users need to know to achieve their goal.

> [!WARNING]
> Urgent info that needs immediate user attention to avoid problems.

> [!CAUTION]
> Advises about risks or negative outcomes of certain actions.

wiki links:

• https://docs.github.com/en/get-started/writing-on-github/getting-started-with-writing-and-formatting-on-github/basic-writing-and-formatting-syntax#alerts
• https://docs.gitlab.com/user/markdown/#alerts

Proposal

I would propose to change the syntax to align with these two services as they have a huge userbase and most people probably be used to their syntax and could get confused when using quarkdown or have to remember two different syntaxes.

[iamgio]

This might work. I'd keep both syntaxes though.

[serkonda7]

I would prefer to go with one syntax and drop the current one after some grace period in the future. But that's probably up to you or a future proposal

[RayOffiah]

I prefer the existing syntax, so supporting both would be my preferred option.

Since Markdown doesn't really have an official standard, adding a new format is less problematic than removing an existing one.