fix: MD031/blanks-around-fences

[nschonni]

Fenced code blocks should be surrounded by blank lines

[PRMerger13]

@nschonni : Thanks for your contribution! The author, @gregvanl, has been notified to review your proposed change.

[ktoliver]

We're in the process of moving this commit to the private repo for validation and staging.

[PRMerger12]

@nschonni : Thanks for your contribution! The author, @gregvanl, has been notified to review your proposed change.

[nschonni]

@ktoliver I know you're pulling this internally, but I fixed the conflict anyway

[ktoliver]

@nschonni @gregvanl Private repo PR 4471 replaces this pull request. We moved the commit to the private repo so we can validate formatting changes by using automated validation and staging. We'll close this PR now.

@nschonni Thanks for your contributions.