Update README.md with NuGet downloads badge

Author: Jose A. Fernandez

README.md

@@ -1,9 +1,9 @@
 # ColorHashSharp
 Generate color based on the given string. C# port of [ColorHash Javascript Library](https://github.com/zenozeng/color-hash).
 
-[![NuGet version (ColorHashSharp)](https://img.shields.io/nuget/v/ColorHashSharp.svg?style=flat-square)](https://www.nuget.org/packages/ColorHashSharp/)
-![.NET Core](https://github.com/fernandezja/ColorHashSharp/workflows/.NET%20Core/badge.svg?branch=master)
-[![Build status](https://fernandezja.visualstudio.com/ColorHashSharp/_apis/build/status/ColorHashSharp-CI)](https://fernandezja.visualstudio.com/ColorHashSharp/_build/latest?definitionId=4)
+[![NuGet version (ColorHashSharp)](https://img.shields.io/nuget/v/ColorHashSharp.svg?style=flat-square)](https://www.nuget.org/packages/ColorHashSharp/)   [![NuGet Downloads](https://img.shields.io/nuget/dt/ColorHashSharp.svg)](https://www.nuget.org/packages/Serilog/)
+
+![.NET Core](https://github.com/fernandezja/ColorHashSharp/workflows/.NET%20Core/badge.svg?branch=master)   [![Build status](https://fernandezja.visualstudio.com/ColorHashSharp/_apis/build/status/ColorHashSharp-CI)](https://fernandezja.visualstudio.com/ColorHashSharp/_build/latest?definitionId=4)
 
 #### Status