documentation: git packages need three or four-item lists?

[Kupac]

It is not clear whether git packages are defined by three or four element lists:
Examples:

• fetchers.R
• rix.R: in this case, the documentation also refers to github, but it probably (hopefully) works with any git resource. Maybe better not to advertise any one of them.

[b-rodrigues]

This is fixed in current master

Regarding mentioning Github, you're right is should work with any service, but I have to test it

[philipp-baumann]

Regarding mentioning Github, you're right is should work with any service, but I have to test it

can we close this, @Kupac, since there is now an open issue and an git branch that seems to address other server-based git repositories like GitLab etc. #278

[Kupac]

Sure, of course! I thought it was closed already!