Started using immutable collections and other code cleanup
diff --git a/src/csharp/Grpc.Core/Channel.cs b/src/csharp/Grpc.Core/Channel.cs
index 5a47961..3a42dac 100644
--- a/src/csharp/Grpc.Core/Channel.cs
+++ b/src/csharp/Grpc.Core/Channel.cs
@@ -36,6 +36,9 @@
 
 namespace Grpc.Core
 {
+    /// <summary>
+    /// gRPC Channel
+    /// </summary>
     public class Channel : IDisposable
     {
         readonly ChannelSafeHandle handle;