Make repo's to hold npm examples

[argyleink]

Use these repo's to power codesandbox and stackblitz envs

[hchiam]

Here's a rather minimal example on codesandbox: https://codesandbox.io/s/github/hchiam/learning-open-props

Or on surge: https://learning-open-props.surge.sh

Built from: https://github.com/hchiam/learning-open-props (automatically linted with es-check for es5)