updated comment for KeyFilename

Author: adkumar3

zip/README

@@ -44,7 +44,7 @@ Refer to our Developer's Guide for details <http://apps.cybersource.com/library/
 
     b. Set keysDirectory to the directory where your key resides.  Use forward-slashes for the directory separator, even on Windows.
 	   For example, "c:/keys"
-	Set KeyFilename if you want to use JKS file or if the p12 file name is different from Merchant_ID.
+	Uncomment & set KeyFilename if you want to use JKS file or if the p12 file name is different from Merchant_ID.
 
 	(Optional Additional Changes)
     c. Set targetAPIVersion to the latest version displayed at: https://<cybersource-host>/commerce/1.x/transactionProcessor/