Required minimum version of Raspbian is buster

[vielmetti]

Reference #8 with build failure on jessie, suggest a fresh install.

[derek]

Thank you for your contribution. I've just checked and your commit doesn't appear to be signed-off. That's something we need before your Pull Request can be merged. Please see our contributing guide.
Tip: if you only have one commit so far then run: git commit --amend --signoff and then git push --force.