README: Add master build status
README: Add master build status

Closes #2125
Reviewed-by: Marius Vollmer <bb11c6e942c5cc765df5f04da146b3198127a7a3@redhat.com>
 * Put badges at the top.

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