Heading right after bullet

[czterystaczwarty]

Fixes #337

When H1 heading is right after the bullet (one new line between) compiler can't parse it as heading.

Exaple:

- **bullet**
# [Heading](http://domain.com) 

## Test

Every markdown editor, I can find, interpret this as heading.

Bellow GitHup interpretation with the same markup:

• bullet

Heading

Test

[quantizor]

@czterystaczwarty thanks, can you mark the test with it.skip for merging purposes and I'll unskip it with the fix later?