Updated Home (markdown)

Home.md

@@ -31,6 +31,7 @@ Update the `Startup.cs` file to this:
 using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Hosting;
 using Microsoft.Bot.Builder.Adapters;
+using Microsoft.Bot.Builder.BotFramework;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging;
@@ -59,7 +60,7 @@ namespace Microsoft.Bot.Samples
 
             services.AddSingleton<BotFrameworkAdapter>(_ =>
             {
-                return new BotFrameworkAdapter(Configuration);
+                return new BotFrameworkAdapter(new ConfigurationCredentialProvider(Configuration));
             });
         }
 
@@ -94,11 +95,11 @@ namespace Microsoft.Bot.Samples
     [Route("api/[controller]")]
     public class MessagesController : Controller
     {
-        BotFrameworkAdapter adapter = null;
+        protected readonly BotFrameworkAdapter _adapter;
 
         public MessagesController(BotFrameworkAdapter adapter)
         {
-            this.adapter = adapter;
+            this._adapter = adapter;
         }
 
         public Task OnReceiveActivity(IBotContext context)
@@ -116,7 +117,8 @@ namespace Microsoft.Bot.Samples
         {
             try
             {
-                await adapter.ProcessActivty(this.Request.Headers["Authorization"].FirstOrDefault(), activity, OnReceiveActivity);
+                await _adapter.ProcessActivity(
+                    this.Request.Headers["Authorization"].FirstOrDefault(), activity, OnReceiveActivity);
                 return this.Ok();
             }
             catch (UnauthorizedAccessException)