Question Where are the docs for the Advertisement with mediation?

Hi there guys,
We started implementing Ads for our mobile game following the docs. We got to a point in which we got the system 'working' in editor. So we dropped a build to mobile device and... crash upon launching rewarded video ad (which is the only ad unit we are currenntly using).
Rolled sleeves up and dug into everything (logcat and everything).
So, docs tell you to install Advertisement package, ¿right? That's how we made it work in editor and stuff. But upon opening the services dashboard panel in unity editor and turning Ads on, it tells you that current Advertisement package is 4.3.0 and you should install 4.4.1, all right. We do that and... Advertisement package gets uninstalled and instead we have Advertisement with Mediation package 1.0.5 installed? Which is different than the docs? Also, when we do that all our interfaces and stuff turn into errors everywhere. So we go to the docs directly from the Ads section (which BTW says 'current version N/A') by clicking on the link of the services panel and it directs you to the tocs that tell you to install Advertisement package???? It also says 'last version 4.4.1', which should be the version I installed? But it's not?
So. Where are the docs for implementing the Advertisement with Mediation package 1.0.5?
Thanks in advance.