Deno fmt incorrectly formats GitHub Markdown alerts

[benStre]

GitHub supports Alerts in Markdown files. Alerts are created with the following syntax:

> [!NOTE]
> Highlights information that users should take into account, even when skimming.

When running deno fmt, this gets converted to

> [!NOTE] Highlights information that users should take into account, even when skimming.

Because of the missing newline, GitHub does not interpret this as a "NOTE" alert anymore.

It would be great if deno fmt would keep the newline in this case so that alerts keep working in Markdown files.

[dsherret]

For now you can do:

<!-- deno-fmt-ignore -->
> [!NOTE]
> Highlights information that users should take into account, even when skimming.

[ngdangtu-vn]

I have a better solution for your case:

> [!NOTE]\
> Highlights information that users should take into account, even when skimming.

In addition, I don't think this should be treated as bug because this is how Markdown rendered. You can tried to save file without format and see the render result, it will be concatenated into 1 line in the end.