add release notes for WCF Client 8.0 release (#5381)

Author: HongGit

release-notes/System.ServiceModel.Federation.md

@@ -8,6 +8,11 @@
 
 ## Version History
 
+### 8.0.0
+
+* [NuGet Package](https://www.nuget.org/packages/System.ServiceModel.Federation/8.0.0)
+* [Release tag](https://github.com/dotnet/wcf/releases/tag/v8.0.0-rtm)
+
 ### 6.2.0
 
 * [NuGet Package](https://www.nuget.org/packages/System.ServiceModel.Federation/6.2.0)

release-notes/System.ServiceModel.Http.md

@@ -8,6 +8,11 @@
 
 ## Version History
 
+### 8.0.0
+
+* [NuGet Package](https://www.nuget.org/packages/System.ServiceModel.Http/8.0.0)
+* [Release tag](https://github.com/dotnet/wcf/releases/tag/v8.0.0-rtm)
+
 ### 6.2.0
 
 * [NuGet Package](https://www.nuget.org/packages/System.ServiceModel.Http/6.2.0)

release-notes/System.ServiceModel.NetFramingBase.md

@@ -8,6 +8,11 @@
 
 ## Version History
 
+### 8.0.0
+
+* [NuGet Package](https://www.nuget.org/packages/System.ServiceModel.NetFramingBase/8.0.0)
+* [Release tag](https://github.com/dotnet/wcf/releases/tag/v8.0.0-rtm)
+
 ### 6.2.0
 
 * [NuGet Package](https://www.nuget.org/packages/System.ServiceModel.NetFramingBase/6.2.0)

release-notes/System.ServiceModel.NetNamedPipe.md

@@ -8,6 +8,11 @@
 
 ## Version History
 
+### 8.0.0
+
+* [NuGet Package](https://www.nuget.org/packages/System.ServiceModel.NetNamedPipe/8.0.0)
+* [Release tag](https://github.com/dotnet/wcf/releases/tag/v8.0.0-rtm)
+
 ### 6.2.0
 
 * [NuGet Package](https://www.nuget.org/packages/System.ServiceModel.NetNamedPipe/6.2.0)

release-notes/System.ServiceModel.NetTcp.md

@@ -8,6 +8,11 @@
 
 ## Version History
 
+### 8.0.0
+
+* [NuGet Package](https://www.nuget.org/packages/System.ServiceModel.NetTcp/8.0.0)
+* [Release tag](https://github.com/dotnet/wcf/releases/tag/v8.0.0-rtm)
+
 ### 6.2.0
 
 * [NuGet Package](https://www.nuget.org/packages/System.ServiceModel.NetTcp/6.2.0)

release-notes/System.ServiceModel.Primitives.md

@@ -8,6 +8,11 @@
 
 ## Version History
 
+### 8.0.0
+
+* [NuGet Package](https://www.nuget.org/packages/System.ServiceModel.Primitives/8.0.0)
+* [Release tag](https://github.com/dotnet/wcf/releases/tag/v8.0.0-rtm)
+
 ### 6.2.0
 
 * [NuGet Package](https://www.nuget.org/packages/System.ServiceModel.Primitives/6.2.0)

release-notes/System.ServiceModel.UnixDomainSocket.md

@@ -8,6 +8,12 @@
 
 ## Version History
 
+### 8.0.0
+
+* [NuGet Package](https://www.nuget.org/packages/System.ServiceModel.UnixDomainSocket/8.0.0)
+* [Release tag](https://github.com/dotnet/wcf/releases/tag/v8.0.0-rtm)
+
+
 ### 6.2.0
 
 * [NuGet Package](https://www.nuget.org/packages/System.ServiceModel.UnixDomainSocket/6.2.0)

release-notes/System.Web.Services.Description.md

@@ -8,6 +8,12 @@
 
 ## Version History
 
+### 8.0.0
+
+* [NuGet Package](https://www.nuget.org/packages/System.Web.Services.Description//8.0.0)
+* [Release tag](https://github.com/dotnet/wcf/releases/tag/v8.0.0-rtm)
+
+
 ### 6.2.0
 
 * [NuGet Package](https://www.nuget.org/packages/System.Web.Services.Description/6.2.0)