using mbuto to run kselftests

Hi,

Thanks to a substantial contribution by Sevinj Aghayeva during the Outreachy contribution phase, mbuto (a shell script building initramfs images that can be loaded by qemu) can now be used to conveniently run kernel selftests in VMs. The website at:

https://mbuto.sh/

shows examples with kselftests and a link to the man page.

Comments, bug reports and patches are all very welcome!