Corteza 2021.9 installation and update guide

Seems like the installation guide is not up to date for version 2021.9.0 , just changing the version in .env does not work.

I also see that the cortezaproject/corteza-server:2021.9.0 is mission the web apps so do we have to use the image cortezaproject/corteza-webapp:2021.9.0 also?

Also seems like the image cortezaproject/corteza:2021.9.0 contains the server and the webapps but it does not run. It cannot connect to persona server version 8.0 for some reason.

Also the upgrade docs are not updated Upgrade Guide :: Corteza Docs