Update README.md

Author: panesofglass

README.md

@@ -3,7 +3,7 @@
 F# wrappers for the [Reactive Extensions (Rx)](http://msdn.microsoft.com/en-us/data/gg577609.aspx)
 
 [![NuGet Status](http://img.shields.io/nuget/v/FSharp.Control.Reactive.svg?style=flat)](https://www.nuget.org/packages/FSharp.Control.Reactive/)
-[[![CI Build](https://github.com/fsprojects/FSharp.Control.Reactive/actions/workflows/build.yml/badge.svg)](https://github.com/fsprojects/FSharp.Control.Reactive/actions/workflows/build.yml)
+[![CI Build](https://github.com/fsprojects/FSharp.Control.Reactive/actions/workflows/build.yml/badge.svg)](https://github.com/fsprojects/FSharp.Control.Reactive/actions/workflows/build.yml)
 
 ## Maintainer(s)