Update README.md

"allowParamPrecedingWhitespaces" and "allowParamTrailingWhitespaces" is expected from ParametersSpacing.js. Also, you must include a for as an array or you get a report error. You also must include "allowParamPrecedingWhitespaces" and "allowParamTrailingWhitespaces" per exception or you get a report error.
Merge pull request #19 from bafolts/patch-1

Update README.md