rename the repeated variable in README, example script

README.md

@@ -16,7 +16,7 @@ To use it from your node application:
 ```
 var grammar = require('usfm-grammar)
 var jsonOutput = garmmar.parse(/**The USFM Text to be converted to JSON**/)
-var jsonOutput = grammar.parse(/**The USFM Text to be converted to JSON**/,grammar.SCRIPTURE)
+var jsonCleanOutput = grammar.parse(/**The USFM Text to be converted to JSON**/,grammar.SCRIPTURE)
 var usfmValidity = grammar.validate(/**USFM Text to be checked**/)
 ```