Fixing small naming problem in README.md
Fixing small naming problem in README.md

googleapis/cloud-trace-nodejs,matthewloring/cloud-trace-nodejs,googleapis/cloud-trace-nodejs,keymetrics/vxx,keymetrics/trassingue,ofrobots/cloud-trace-nodejs,googleapis/cloud-trace-nodejs,matthewloring/cloud-trace-nodejs,ofrobots/cloud-trace-nodejs,googleapis/cloud-trace-nodejs,keymetrics/vxx,keymetrics/trassingue,matthewloring/cloud-trace-nodejs