Fix spelling mistake

DiscordRPC.Example/Program.cs

@@ -551,7 +551,7 @@ static void ExecuteCommand(string word)
                     break;
 
                 default:
-                    Console.WriteLine("Unkown Command '{0}'. Try 'help' for a list of commands", command);
+                    Console.WriteLine("Unknown Command '{0}'. Try 'help' for a list of commands", command);
                     break;
             }
 

DiscordRPC/Message/ErrorMessage.cs

@@ -46,8 +46,8 @@ public enum ErrorCode
 		NotImplemented = 10,
 
 		//Discord RPC error codes
-		///<summary>Unkown Discord error</summary>
-		UnkownError = 1000,
+		///<summary>Unknown Discord error</summary>
+		UnknownError = 1000,
 
 		///<summary>Invalid Payload received</summary>
 		InvalidPayload = 4000,

DiscordRPC/RPC/RpcConnection.cs

@@ -559,7 +559,7 @@ private void ProcessFrame(EventPayload response)
 
 					//we have no idea what we were sent
 					default:
-						Logger.Error("Unkown frame was received! {0}", response.Command);
+						Logger.Error("Unknown frame was received! {0}", response.Command);
 						return;
 				}
 				return;
@@ -591,7 +591,7 @@ private void ProcessDispatch(EventPayload response)
 					EnqueueMessage(request);
 					break;
 
-				//Unkown dispatch event received. We should just ignore it.
+				//Unknown dispatch event received. We should just ignore it.
 				default:
 					Logger.Warning("Ignoring {0}", response.Event.Value);
 					break;

DiscordRPC/Registry/UriScheme.cs

@@ -84,7 +84,7 @@ public bool RegisterUriScheme()
 #endif
 
                 default:
-                    _logger.Error("Unkown Platform: {0}", Environment.OSVersion.Platform);
+                    _logger.Error("Unknown Platform: {0}", Environment.OSVersion.Platform);
                     throw new PlatformNotSupportedException("Platform does not support registration.");
             }