Update README.md

Author: ltrudu

README.md

@@ -4,7 +4,7 @@
 
 Forget about StageNow, EMDK, complexity....
 
-Just get the serial number and the IMEI number of your Zebra device in one line of code (see at the end of this document).
+Just get the serial number and the IMEI number of your Zebra device in one method call (see at the end of this document).
 
 Have fun with Zebra's devices :)