Merge pull request #1 from HiltonGiesenow/HiltonGiesenow-ShowTypingMi…

…ddleware-typo1

Update ShowTypingMiddleware.cs

libraries/Microsoft.Bot.Builder/ShowTypingMiddleware.cs

@@ -10,7 +10,7 @@ namespace Microsoft.Bot.Builder
 {
     /// <summary>
     /// When added, this middleware will send typing activities back to the user when a Message activity
-    /// is receieved to let them know that the bot has receieved the message and is working on the response.
+    /// is receieved to let them know that the bot has received the message and is working on the response.
     /// You can specify a delay in milliseconds before the first typing activity is sent and then a frequency,
     /// also in milliseconds which determines how often another typing activity is sent. Typing activities
     /// will continue to be sent until your bot sends another message back to the user.