Have you tried to make your own snippets?
Try the New Snippet command in the Tools-menu and add the following and save it:
<snippet>
<content><![CDATA[
<li type="square">${1:Item} ${2:}
]]></content>
<tabTrigger>li</tabTrigger>
</snippet>
This will enter an <li>
-tag in the current file if you type li
and then press Tab.
You can also add a <scope>
tag to limit it to HTML-files.
From the unofficial documentation:
Snippets can be stored under any package’s folder, but to keep it simple while you’re learning, you can save them to your Packages/User folder