More hyperlinks

[alanedelman]

I love the hyperlinks when we call Methods

Can we also do that with Using

e.g.

Using Color could point to
https://github.com/JuliaLang/Color.jl

This is a kind of easy automatic documentation, kind of like a "help"

[stevengj]

How about just having ?Color (i.e. help(Color)) print the URL (as a hyperlink in IJulia, which probably means help(::Module) should return some kind of PkgInfo structure with appropriate writemime methods)?

cc: @StefanKarpinski

[StefanKarpinski]

Yes, I agree with that approach.