[Chore]: Add more local development instructions

[jordanharris-6]

The feature

When I was developing locally. I didn't know how to update my project with the latest version of build tools using yalc. I later learned that once you have made changes to build tools and ran yalc publish you then need to run yalc push and in the project you want to use it in you need to run yalc update so it uses the new version. I think adding these steps to the readme would be good for other users developing locally.

[ampersarnie]

Closed with merge of #115