updated for mbed-os 5.5

Revision:
1:a3b418536134
Parent:
0:c742e33896a9
--- a/main.cpp	Thu Sep 17 16:34:48 2015 +0000
+++ b/main.cpp	Wed Apr 12 14:57:23 2017 +0000
@@ -23,4 +23,7 @@
         myled = 0; // LED is OFF
         wait(1.0); // External 1 second
     }
-}
\ No newline at end of file
+}
+
+//updated for mbed os 5.4
+