Fix: comment adds a line between previous and later components

[rollaball]

• Please check if the PR fulfills these requirements

• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

• What kind of change does this PR introduce? (Bug fix, feature, docs update, ...)
  Adds a break when a new line comment is used.

• What is the current behavior? (You can also link to an open issue here)

Hello
// comment
World

turns to

• What is the new behavior (if this is a feature change)?

Hello
// comment
World

turns to

• Does this PR introduce a breaking change? (What changes might users need to make in their application due to this PR?)
  As BREAK ends the <p> there is a margin between the previous and later components

• Other information:
  Issue: Two lines separated by a commented line aren't on two separate lines in the outputted html #504

[mathisonian]

Nice work! I'm sending you an invite to the Idyll organization since you've made substantial contributions. That will let you branch directly off of master for future PRs, which makes it a bit easier to work on them collaboratively.

[rollaball]

Thanks!!