Add CommonJS, ES6 import examples in install docs
Add CommonJS, ES6 import examples in install docs

housinghq/main-raven-js,housinghq/main-raven-js,getsentry/raven-js,getsentry/raven-js,Mappy/raven-js,getsentry/raven-js,getsentry/raven-js,Mappy/raven-js,housinghq/main-raven-js,Mappy/raven-js