This patch includes the link of TripleO documentation which is a uniq
link, unversioned, which means we'll have to include this link for every
new release.
Inside our doc, we have notes when something is release-specific, that's
how it always worked and we have no plan to change it.
Change-Id: Ic63bdbd2f311bb0b409b857fbc4d33a1b16a15f2
40b7544838