Add option for a blank line after anchor

[roasterdave]

Requesting a new option to insert a blank line after the anchor. This will satisfy markdownlint MD022 without disabling the specific lint rule.

Maybe there is a better way?

[derlin]

Hello there, and thank you for opening this issue!
I will label it as an enhancement and keep it in mind for the next round of improvements 👍

[roasterdave]

Thanks!