Update README.md

[taylorgibb]

This example code wont work as it is. You get the following error:

"collection' implicitly has type 'any' because it does not have a type annotation and is referenced directly or indirectly in its own initializer."

Checklist

• Issue number for this PR: #nnn (required)
• Docs included?: (yes/no; required for all API/functional changes)
• Test units included?: (yes/no; required)
• In a clean directory, yarn install, yarn test run successfully? (yes/no; required)

Description

Code sample