no warnings for mqtt, dashboard

Author: brentru

src/AdafruitIO_Dashboard.h

@@ -47,6 +47,12 @@ class AdafruitIO_Dashboard {
   const char *name;    /*!< Dashboard name. */
   const char *user();  /*!< Dashboard owner's Adafruit IO username. */
 
+   /**************************************************************************/
+  /*!
+  @brief    Creates an instance of AdafruitIO.
+  @return   True
+  */
+  /**************************************************************************/
   AdafruitIO *io();
 
   bool exists();

src/AdafruitIO_MQTT.h

@@ -26,6 +26,16 @@ class AdafruitIO_MQTT {
 
 public:
   AdafruitIO_MQTT() {}
+  /**************************************************************************/
+  /*!
+  @brief    Creates an instance of a MQTT subscription callback.
+  @param    val 
+            Value from the MQTT subscription callback.
+  @param    len
+            Length of returned value.
+  @return   True
+  */
+  /**************************************************************************/
   virtual void subCallback(char *val, uint16_t len) = 0;
 };