Merge pull request #97 from zackliu/deprecate-serverless

Deprecate serverless sample and redirect to management sample

Author: zackliu

samples/Serverless/README.md

@@ -1,6 +1,12 @@
 Azure SignalR Service Serverless Sample
 =================================
 
+## **Deprecated**
+
+This sample have been **deprecated**. Users are not recommended to generate access token by themselves. In the Serverless scenario, users are recommended to use Management SDK to build a negotiation server which is responsible for generating access token. For more samples and details, take [Management Sample](../Management) as reference.
+
+----
+
 This sample is a console app showing the use of Azure SignalR Service in server-less pattern. It provides two modes:
 
 - Server Mode: use simple commands to call Azure SignalR Service REST API.