[Xone K2] Fix formatting

[sven-frotscher]

The nested list items weren't indented.

[ronso0]

Thank you, this LGTM

[ronso0]

Thank you for this contribution!

Updates should go to the branch that corresponds to the mixxx branch that contains the mapping.
In this case the mapping itself was last changed 3 years ago, so it's definitely in Mixxx 2.3.
Please rebase onto 2.3, force-push. I already changed the target branch here, hence those ~150 unrelated commits.

Rebasing this single commit should be as easy as
git rebase -i [mixxx remote]/2.3 where [mixxx-remote] is the name you gave to the mixxx remote repo.
while you're at it, please rephrase the commit message so we know it's about the Xone K2.
If you have any questions don't hesitate to ask.

[sven-frotscher]

Like this? It required some jumping through hoops since I originally made the edit on GitHub, not locally.

[ronso0]

Yup, looks good. Thank you!