Add badge for vs2015
Add badge for vs2015

cloudRoutine/FSharp.Compiler.Service,dsyme/FSharp.Compiler.Service,dsyme/fsharp,vasily-kirichenko/FSharp.Compiler.Service,Jand42/FSharp.Compiler.Service,fsharp/fsharp,0x53A/FSharp.Compiler.Service,syeerzy/visualfsharp,matthid/FSharp.Compiler.Service,alfonsogarciacaro/FSharp.Compiler.Service,vasily-kirichenko/FSharp.Compiler.Service,Jand42/FSharp.Compiler.Service,0x53A/FSharp.Compiler.Service,ncave/FSharp.Compiler.Service,dsyme/fsharp,forki/FSharp.Compiler.Service,Jand42/FSharp.Compiler.Service,sergey-tihon/FSharp.Compiler.Service,fsharp/fsharp,forki/FSharp.Compiler.Service,0x53A/FSharp.Compiler.Service,BillHally/FSharp.Compiler.Service,syeerzy/visualfsharp,brettfo/visualfsharp,syeerzy/visualfsharp,cloudRoutine/FSharp.Compiler.Service,rojepp/FSharp.Compiler.Service,fsharp/fsharp,BillHally/FSharp.Compiler.Service,brettfo/visualfsharp,matthid/FSharp.Compiler.Service,dsyme/fsharp,dsyme/fsharp,matthid/FSharp.Compiler.Service,brettfo/visualfsharp,brettfo/visualfsharp,dsyme/fsharp,forki/FSharp.Compiler.Service,rojepp/FSharp.Compiler.Service,sergey-tihon/FSharp.Compiler.Service,ncave/FSharp.Compiler.Service,dsyme/fsharp,dsyme/FSharp.Compiler.Service,cloudRoutine/FSharp.Compiler.Service,rojepp/FSharp.Compiler.Service,sergey-tihon/FSharp.Compiler.Service,vasily-kirichenko/FSharp.Compiler.Service,alfonsogarciacaro/FSharp.Compiler.Service,alfonsogarciacaro/FSharp.Compiler.Service,dsyme/fsharp,syeerzy/visualfsharp,brettfo/visualfsharp,syeerzy/visualfsharp,dsyme/FSharp.Compiler.Service,syeerzy/visualfsharp,ncave/FSharp.Compiler.Service,brettfo/visualfsharp