Add Patch to enable PRs coming from patch branch

[apeltzer]

After changing / testing this on hlatyping, I figured that we need to change this in linting and the template too:

https://travis-ci.com/apeltzer/hlatyping/jobs/238549269

PR checklist

• This comment contains a description of changes (with reason)
• If you've fixed a bug or added code that should be tested, add tests!
• Documentation in docs is updated
• CHANGELOG.md is updated
• README.md is updated

[apeltzer]

Okay, tests look like they pass 🎉

x-ref nf-core/hlatyping#66 which was used to test this properly. These tests will pass on all pipelines once we have a new tools release 👍

[sven1103]

Awesome Alex, thanks for getting this on the road!

[ewels]

Nice! Would be good to update other travis files too.. eg. the mainly the one for tools 😀

[apeltzer]

Ok, will do that asap :-)

[apeltzer]

Added :-)