Update README.md for System.Net.WebSockets.Client

Author: davidsh

README.md

@@ -96,6 +96,7 @@ More libraries are coming soon (the overall list of items we currently plan to m
 |<sub>**System.Net.Requests**<br/>[![MyGet Package](https://img.shields.io/myget/dotnet-core/v/System.Net.Requests.svg)](https://www.myget.org/gallery/dotnet-core)</sub>|<sub>Provides older classes (such as HttpWebRequest and HttpWebResponse) for sending HTTP requests and receiving HTTP responses from a resource identified by a URI. _This library is available primarily for compatibility; developers should prefer the classes in the System.Net.Http package._</sub>|
 |<sub>**System.Net.WebHeaderCollection**<br/>[![MyGet Package](https://img.shields.io/myget/dotnet-core/v/System.Net.WebHeaderCollection.svg)](https://www.myget.org/gallery/dotnet-core)</sub>|<sub>Contains types that represent HTTP request and response headers. This library is used with classes such as System.Net.HttpWebRequest and System.Net.HttpWebResponse and allows developers to query/edit header names/values.</sub>|
 |<sub>**System.Net.WebSockets**<br/>[![MyGet Package](https://img.shields.io/myget/dotnet-core/v/System.Net.WebSockets.svg)](https://www.myget.org/gallery/dotnet-core)</sub>|<sub>Provides the System.Net.WebSockets.WebSocket abstract class and related types to allow developers to implement the WebSocket protocol (RFC 6455). WebSockets provide full-duplex communication over a single TCP connection.</sub>|
+|<sub>**System.Net.WebSockets.Client**<br/>[![MyGet Package](https://img.shields.io/myget/dotnet-core/v/System.Net.WebSockets.Client.svg)](https://www.myget.org/gallery/dotnet-core)</sub>|<sub>Provides the System.Net.WebSockets.ClientWebSocket class, which implements the client role of the WebSockets protocol (RFC 6455).</sub>|
 |<sub>**System.Numerics.Vectors**<br/>[![MyGet Package](https://img.shields.io/nuget/vpre/System.Numerics.Vectors.svg)](http://www.nuget.org/packages/System.Numerics.Vectors/)</sub>|<sub>Provides a set of basic vector types that leverage single instruction, multiple data (SIMD) CPU instructions.</sub>|
 |<sub>**System.Numerics.Vectors.WindowsRuntime**<br/>[![MyGet Package](https://img.shields.io/myget/dotnet-core/v/System.Numerics.Vectors.WindowsRuntime.svg)](https://www.myget.org/gallery/dotnet-core)</sub>|<sub>Provides extension methods for converting between types in System.Numerics.Vectors and types in the Windows Runtime (WinRT).</sub>|
 |<sub>**System.ObjectModel**<br/>[![MyGet Package](https://img.shields.io/myget/dotnet-core/v/System.ObjectModel.svg)](https://www.myget.org/gallery/dotnet-core)</sub>|<sub>Provides types and interfaces that enable the creation of observable types that provide notifications to clients when changes are made.</sub>|