sp-dev-fx-webparts/samples/react-documents-detailslist/config/deploy-azure-storage.json

{
  "$schema": "https://developer.microsoft.com/json-schemas/core-build/serve.schema.json",
  "workingDir": "./temp/deploy/",
  "account": "<!-- STORAGE ACCOUNT NAME -->",
  "container": "react-documents",
  "accessKey": "<!-- ACCESS KEY -->"
}