Add gitkracken files to gitignore

[RDIL]

PR Summary

GitKracken is a pretty popular git client so let’s ignore useless files it makes

PR Checklist

• PR has a meaningful title
  • Use the present tense and imperative mood when describing your changes
• Summarized changes
• Change is not breaking
• Make sure all .h, .cpp, .cs, .ps1 and .psm1 files have the correct copyright header
• This PR is ready to merge and is not Work in Progress.
  • If the PR is work in progress, please add the prefix WIP: to the beginning of the title and remove the prefix when the PR is ready.
• User-facing changes
  • Not Applicable
  • OR
  • User-facing Documentation needed
• Testing - New and feature
  • Not Applicable or can only be tested interactively
  • OR
  • Make sure you've added a new test if existing tests do not effectively test the code changed
    • Add [feature] if the change is significant or affects feature tests

[RDIL]

Sorry don’t know why the rest isn’t rendering, meant to say it’s a popular git client and those files shouldn’t be committed.

[ghost]

@RDIL Not gkconfg.yml but gkconfig.yml

[RDIL]

Sorry!

[TravisEz13]

Thank you @PSVortex for you contribution and @RDIL for your review.

[RDIL]

other way round xD

[TravisEz13]

Sorry...

[RDIL]

Haha it’s fine