Added comment to demo

ed7coyne · ed7coyne · commit 109463bf3edd · 2016-05-26T16:45:36.000-07:00
diff --git a/examples/FirebaseDemo_ESP8266/FirebaseDemo_ESP8266.ino b/examples/FirebaseDemo_ESP8266/FirebaseDemo_ESP8266.ino
@@ -87,6 +87,7 @@ void loop() {
   
   // set bool value
   Firebase.setBool("truth", false);
+  // handle error
   if (Firebase.failed()) {
       Serial.print("setting /truth failed:");
       Serial.println(Firebase.error());  
