Cross-referencing

[ghost]

There is currently little cross-referencing between end-to-end Tutos and the 'Labs' or 'Getting started' sections. I think it would help if the Tutos pointed to Labs and other sections for more basic introduction to some of the tools/commands used. And, the other way around, if in these sections there were pointers to the end-to-end tutos which apply them in context.

[tlienart]

sounds good!