Fix a missed `env` reference.
Added links to the Salt RTD and YouTube channel

Refs #8414
Added link to download offline copies of older Salt docs

Fixes #8413
Added link to RTD for previous version builds under main version link

Fixes #8414
Shortened link text for docs for previous releases
A "who's calling me" helping hand.

Source: https://gist.github.com/techtonik/2151727

The snippet is public domain.
Never forget specifying which `saltenv` we're using.
Set buffer to 5000 for some Windows sc commands
Merge pull request #8422 from UtahDave/develop

Set buffer to 5000 for some Windows sc commands
Added link to the template-formula repo courtesy of @duk3luk3
fix pylint complaining about only one hard return
Merge pull request #8423 from UtahDave/develop

fix pylint complaining about only one hard return
initially adding support to Salt to configure GNOME settings via DBUS.
Modify: clean use glob to match filename that need remove
Some more saltenv related tests.
Fix the mocked contents pillar file state tests.
Added missing function for Windows
Added missing function for freebsd
Added missing function for rh
Fixed documentation errors
Added missing function to smf
Fixed documenation inconsistencies