docs(readme): respond to matt norris comments
docs(readme): respond to matt norris comments

aimeex3/spark-js-sdk,bbender/spark-js-sdk,adamweeks/spark-js-sdk,adamweeks/spark-js-sdk,bbender/spark-js-sdk,aimeex3/spark-js-sdk,aimeex3/spark-js-sdk,adamweeks/spark-js-sdk,mwegman/spark-js-sdk,mwegman/spark-js-sdk,bbender/spark-js-sdk,mwegman/spark-js-sdk