Remove documentation of digest.txz which does not exists anymore and remove bogus reference to YAML
Remove documentation of digest.txz which does not exists anymore and
remove bogus reference to YAML

khorben/pkg,khorben/pkg,Open343/pkg,khorben/pkg,skoef/pkg,en90/pkg,en90/pkg,Open343/pkg,junovitch/pkg,skoef/pkg,junovitch/pkg