Fix empty list items

[mccraveiro]

Marked version: master branch

Markdown flavor: CommonMark

Description

• Related to Defibrillator challenge #1216

Input

- foo
-- bar

Expectation

<ul><li>foo</li><li></li><li>bar</li></ul>

Result

<ul><li>foo
-</li><li>bar</li></ul>

What was attempted

Fix empty list items by making white space optional

Contributor

• Test(s) exist to ensure functionality and minimize regression (if no tests added, list tests covering this PR); or,
• no tests required for this PR.
• If submitting new feature, it has been documented in the appropriate places.

Committer

In most cases, this should be a different person than the contributor.

• Draft GitHub release notes have been updated.
• CI is green (no forced merge required).
• Merge PR

[UziTech]

🥇

[styfle]

🎉