Improve the link to docs on each package

[javiereguiluz]

In the current web design, the Documentation link is displayed at the bottom of the page. For most folks, this is way below the visible contents when loading the page:

I propose to display a link to the docs right next to the command shown to install the package:

Don't mind the text and the "design" of my mockup. It's just a quick mockup to give you an idea of the exact location where I'd like this link to be.

[Kocal]

That would be a great improvment :)

[smnandre]

Sub menus for every package pages is a work in progress... i really hope to release all this before vienna :)

[Kocal]

Closing, since #2309 has been merged