Documentation states 7.x no longer active, 8.x latest

[Max13]

On 7.x doc, it's written:

This is documentation for Deployer 7.x, which is no longer actively maintained.
For up-to-date documentation, see the latest version (8.x).

But according to the releases and tags, 7.x is still the latest stable, 8.x is alpha. Can we update the documentation ?

[Max13]

Duplicate #4008