Misplaced comma in readme example

[mastanca]

Purpose / Goal

Fix misplaced comma in starting readme example

Type

Please mention the type of PR

• [ ]Bug Fix
• [ ]Refactoring / Technology upgrade
• [ ]New Feature

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[coveralls]

Coverage remained the same at 96.423% when pulling 5055bd9 on mastanca:patch-1 into 1a08786 on NaturalIntelligence:master.

[amitguptagwl]

var jsonObj = parser.parse(xmlData [,options] ); signifies that options is optional. So it is correct.

Thanks for your PR.