Parsing images with digest is not clear

[AbdelrahmanElawady]

Parsing images with digest like docker.io/library/nginx@sha256:ed6d2c43c8fbcd3eaa44c9dab6d94cb346234476230dc1681227aa72d07181ee using Parse doesn't work without having blank imports for a package that registers hash functions, for example having something like import _ "crypto/sha256".

go-digest mention that in their readme as it can lead to some confusion.

IMO, I think it should be mentioned somewhere that you need to have these imports or referencing go-digest for example as it is the package where this behavior originates but that's up to you.

playground link.

Thanks!

[milosgajdos]

Thanks, yeah this IS annoying. Mind opening a PR for README / godoc?