fix(Packaging): Workaround erroneous xmldoc in FSharp.Core

Author: bartelink

paket.dependencies

@@ -3,7 +3,7 @@ source https://api.nuget.org/v3/index.json
 storage: none
 lowest_matching: true
 strategy: min
-nuget FSharp.Core >= 6.0.1
+nuget FSharp.Core >= 6.0.1 content: none
 nuget Hopac >=  0.5.1
 nuget FSharp.Control.AsyncSeq >= 3.2.1
 nuget Fable.Core >= 4.2.0
@@ -40,7 +40,7 @@ nuget BenchmarkDotNet.Diagnostics.Windows 0.13.1
 group Build
     source https://api.nuget.org/v3/index.json
     storage: none
-    nuget FSharp.Core
+    nuget FSharp.Core content: none
     nuget Fake.Core.Target 5.22.0
     nuget Fake.DotNet.Cli 5.22.0
     nuget Fake.Core.ReleaseNotes 5.22.0