Update example

Author: vshymanskyy

README.md

@@ -50,7 +50,7 @@ def my_write_handler(value):
 @blynk.VIRTUAL_READ(2)
 def my_read_handler():
     # this widget will show some time in seconds..
-    blynk.virtual_write(2, time.ticks_ms() // 1000)
+    blynk.virtual_write(2, int(time.time()))
 
 while True:
     blynk.run()