Create README documentation

[edwardsmoses]

Update the README file to help contributors onboard on the repo.

[edwardsmoses]

Here are some examples of README documentation that you could use as an example: https://github.com/MetaMask/metamask-extension#building-locally

[edwardsmoses]

More examples: https://github.com/darkreader/darkreader#building-for-use https://github.com/GoogleChrome/chrome-extensions-samples/blob/main/CONTRIBUTING.md#setting-up-your-environment https://github.com/refined-github/refined-github/blob/main/contributing.md#contributing https://github.com/radekmie/MiniMongoExplorer#development

[edwardsmoses]

Here's an example of documentation I wrote for a project:

[edwardsmoses]

For this Project, the Node version requirement is: Node.js 16.x or later

Also, in the documentation, add a link to this repo: https://github.com/PlasmoHQ/plasmo, as this is the framework in use for the extension.

[edwardsmoses]

Let me know if there're any questions - thanks!

[edwardsmoses]

Here's another nice example: https://github.com/PlasmoHQ/plasmo/blob/main/.github/CONTRIBUTING.md