Start of a doc to describe implementer concerns and opportunities, largely relating to performance.
Start of a doc to describe implementer concerns and opportunities, largely relating to performance.

mkruisselbrink/ServiceWorker,chadoliver/ServiceWorker,slightlyoff/ServiceWorker,martinthomson/ServiceWorker,slightlyoff/ServiceWorker,karolklp/ServiceWorker,martinthomson/ServiceWorker,zuzusik/ServiceWorker,chadoliver/ServiceWorker,martinthomson/ServiceWorker,justinleoye/ServiceWorker,karolklp/ServiceWorker,justinleoye/ServiceWorker,karolklp/ServiceWorker,zuzusik/ServiceWorker,chadoliver/ServiceWorker,justinleoye/ServiceWorker,zuzusik/ServiceWorker,mkruisselbrink/ServiceWorker