Updated badge for appveyor
Updated badge for appveyor

OrchardCMS/Brochard,stevetayloruk/Orchard2,xkproject/Orchard2,OrchardCMS/Brochard,petedavis/Orchard2,stevetayloruk/Orchard2,OrchardCMS/Brochard,xkproject/Orchard2,stevetayloruk/Orchard2,petedavis/Orchard2,xkproject/Orchard2,xkproject/Orchard2,petedavis/Orchard2,petedavis/Orchard2,stevetayloruk/Orchard2,stevetayloruk/Orchard2,xkproject/Orchard2