v1.x has a bug where content of alerts like a list don't get displayed correctly, v2 fixes it

[chrisweb]

v1.x has a bug where content of alerts like a list don't get displayed correctly

something like the following markdown was not displaying correctly in v1.x:

# note with a list

> [!NOTE]  
> - foo
> - bar

[chrisweb]

v2.x just got released, the above markdown should now output the following HTML:

<h1>note with a list</h1>
<div class="markdown-alert markdown-alert-note"><p class="markdown-alert-title"><svg class="octicon octicon-info mr-2" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="M0 8a8 8 0 1 1 16 0A8 8 0 0 1 0 8Zm8-6.5a6.5 6.5 0 1 0 0 13 6.5 6.5 0 0 0 0-13ZM6.5 7.75A.75.75 0 0 1 7.25 7h1a.75.75 0 0 1 .75.75v2.75h.25a.75.75 0 0 1 0 1.5h-2a.75.75 0 0 1 0-1.5h.25v-2h-.25a.75.75 0 0 1-.75-.75ZM8 6a1 1 0 1 1 0-2 1 1 0 0 1 0 2Z"></path></svg>Note</p>
<ul>
<li>foo</li>
<li>bar</li>
</ul>
</div>

v2 fixes it

I also added a tests suite to verify the this case and other common cases

v2 also includes two new default alert types tip and caution

Tip

I'm a tip alert

Caution

I'm a caution alert