doc: Document the dashboard auth setup process
doc: Document the dashboard auth setup process

Closes #2072
Reviewed-by: Marius Vollmer <bb11c6e942c5cc765df5f04da146b3198127a7a3@redhat.com>

andreasn/cockpit,stefwalter/cockpit,arilivigni/cockpit,dperpeet/cockpit,Thermionix/cockpit,matobet/cockpit,matobet/cockpit,vbatts/cockpit,mareklibra/cockpit,deryni/cockpit,andreasn/cockpit,harishanand95/cockpit,darioajr/cockpit,petervo/cockpit,maxamillion/cockpit,fridex/cockpit,haiyangd/cockpit_view,sgallagher/cockpit,arilivigni/cockpit,FireDrunk/cockpit,harishanand95/cockpit,netzvieh/cockpit,Thermionix/cockpit,nmav/cockpit,andreasn/cockpit,zigitax/cockpit,netzvieh/cockpit,firebitsbr/cockpit,denysvitali/cockpit,xhad/cockpit,darioajr/cockpit,harishanand95/cockpit,Scribery/cockpit,Scribery/cockpit,darioajr/cockpit,cockpit-project/cockpit,Armstrong1992/cockpit,michalskrivanek/cockpit,moraleslazaro/cockpit,deryni/cockpit,Scribery/cockpit,maxamillion/cockpit,cockpit-project/cockpit,garrett/cockpit,SotolitoLabs/cockpit,andreasn/cockpit,cockpituous/cockpit,mareklibra/cockpit,michalskrivanek/cockpit,andreasn/cockpit,larsu/cockpit,cockpituous/cockpit,deryni/cockpit,firebitsbr/cockpit,vbatts/cockpit,arilivigni/cockpit,sgallagher/cockpit,denysvitali/cockpit,vbatts/cockpit,xhad/cockpit,maxamillion/cockpit,moraleslazaro/cockpit,netzvieh/cockpit,matobet/cockpit,andreasn/cockpit,sgallagher/cockpit,xhad/cockpit,moraleslazaro/cockpit,firebitsbr/cockpit,denysvitali/cockpit,deryni/cockpit,petervo/cockpit,fridex/cockpit,dperpeet/cockpit,maxamillion/cockpit,denysvitali/cockpit,cockpituous/cockpit,larskarlitski/cockpit,larskarlitski/cockpit,Scribery/cockpit,mareklibra/cockpit,SotolitoLabs/cockpit,larskarlitski/cockpit,vanloswang/cockpit,arilivigni/cockpit,Thermionix/cockpit,FireDrunk/cockpit,evol262/cockpit,arilivigni/cockpit,stefwalter/cockpit,mareklibra/cockpit,nmav/cockpit,haiyangd/cockpit_view,martinpitt/cockpit,jscotka/cockpit,fridex/cockpit,moraleslazaro/cockpit,SotolitoLabs/cockpit,deryni/cockpit,vanloswang/cockpit,garrett/cockpit,Armstrong1992/cockpit,Thermionix/cockpit,dperpeet/cockpit,SotolitoLabs/cockpit,Armstrong1992/cockpit,cockpituous/cockpit,Scribery/cockpit,jscotka/cockpit,cockpit-project/cockpit,firebitsbr/cockpit,harishanand95/cockpit,jscotka/cockpit,dperpeet/cockpit,michalskrivanek/cockpit,xhad/cockpit,petervo/cockpit,harishanand95/cockpit,haiyangd/cockpit_view,moolitayer/cockpit,stefwalter/cockpit,vbatts/cockpit,dperpeet/cockpit,vanloswang/cockpit,moolitayer/cockpit,dperpeet/cockpit,FireDrunk/cockpit,SotolitoLabs/cockpit,mvollmer/cockpit,stefwalter/cockpit,deryni/cockpit,mvollmer/cockpit,larskarlitski/cockpit,zigitax/cockpit,FireDrunk/cockpit,sgallagher/cockpit,arilivigni/cockpit,mvollmer/cockpit,deryni/cockpit,moraleslazaro/cockpit,darioajr/cockpit,moolitayer/cockpit,sgallagher/cockpit,sgallagher/cockpit,Thermionix/cockpit,netzvieh/cockpit,haiyangd/cockpit_view,evol262/cockpit,dperpeet/cockpit,denysvitali/cockpit,Scribery/cockpit,larskarlitski/cockpit,garrett/cockpit,cockpit-project/cockpit,larsu/cockpit,martinpitt/cockpit,stefwalter/cockpit,petervo/cockpit,mareklibra/cockpit,evol262/cockpit,martinpitt/cockpit,martinpitt/cockpit,vbatts/cockpit,jscotka/cockpit,vanloswang/cockpit,cockpituous/cockpit,Armstrong1992/cockpit,garrett/cockpit,vanloswang/cockpit,garrett/cockpit,fridex/cockpit,nmav/cockpit,michalskrivanek/cockpit,petervo/cockpit,fridex/cockpit,andreasn/cockpit,haiyangd/cockpit_view,darioajr/cockpit,sgallagher/cockpit,stefwalter/cockpit,moraleslazaro/cockpit,nmav/cockpit,cockpit-project/cockpit,netzvieh/cockpit,zigitax/cockpit,zigitax/cockpit,Scribery/cockpit,fridex/cockpit,larskarlitski/cockpit,Thermionix/cockpit,michalskrivanek/cockpit,moolitayer/cockpit,larsu/cockpit,petervo/cockpit,SotolitoLabs/cockpit,harishanand95/cockpit,netzvieh/cockpit,evol262/cockpit,arilivigni/cockpit,evol262/cockpit,xhad/cockpit,matobet/cockpit,larsu/cockpit,vanloswang/cockpit,jscotka/cockpit,matobet/cockpit,larsu/cockpit,mareklibra/cockpit,xhad/cockpit,FireDrunk/cockpit,martinpitt/cockpit,michalskrivanek/cockpit,Armstrong1992/cockpit,xhad/cockpit,mvollmer/cockpit,stefwalter/cockpit,mvollmer/cockpit,harishanand95/cockpit,cockpituous/cockpit,zigitax/cockpit,matobet/cockpit,jscotka/cockpit,maxamillion/cockpit,michalskrivanek/cockpit,SotolitoLabs/cockpit,evol262/cockpit,nmav/cockpit,larskarlitski/cockpit,vanloswang/cockpit,firebitsbr/cockpit,petervo/cockpit,larsu/cockpit,vbatts/cockpit,moraleslazaro/cockpit,moolitayer/cockpit,mareklibra/cockpit