Update esp8266_mrdiy_mqtt_local_notifier.ino

esp8266_mrdiy_mqtt_local_notifier.ino

@@ -37,6 +37,8 @@
      - Change Volume         MQTT topic: "mrdiynotifier/volume"
                              MQTT load: a double between 0.00 and 1.00, example: 0.7
 
+     - Stop Playing         MQTT topic: "mrdiynotifier/stop"                           
+
      To get status:
 
      - The notifier sends status update on this MQTT topic: "mrdiynotifier/status"
@@ -46,7 +48,7 @@
                   "error"         error when receiving a command: example: MP3 file URL can't be loaded
                   "connected"     device just connected to MQTT server
 
-     - The notifier plays a 2 second audio clip when it is first booted and connected to Wifi
+     - The notifier plays a 2 second audio clip when it is first booted and connected to Wifi & MQTT
 
 
     To Upload to Wesmo D1 Mini:
@@ -67,7 +69,8 @@
 
     Many thanks to all the authors and contributors to the above libraries - you have done an amazing job!
 
-    For more info visit me at MrDIY.ca and find the Notifier Video on my YouTube channel.
+    For more info visit me at MrDIY.ca and find the Notifier Video on my YouTube channel:
+    https://youtu.be/SPa9SMyPU58
 
   ============================================================================================================== */