Updated readme with basic installation instructions.

[kbondanza]

Updated readme with basic installation instructions, and updated npm version number to match version number in package.json.

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[kbondanza]

I saw this enhancement issue: #7 and the twitter discussion. Should I remove the recommendation, basic webpack config steps I added? I was thinking, of how I was confused at first, and made some unsuccessful installation attempts with CRA and Parcel Apps.

[hamlim]

Sorry for the delay, thanks for the PR.

Lets keep the webpack notes, I think that issue #7 will be an enhancement on top of regular wepack setups.

Any CRA setup will need to be using a v2 alpha since that is when they add support for babel-plugin-macros.

[kbondanza]

Yeah, I did some research while learning/debugging the other day and learned that although the alpha versions do compile node_modules by default they only do for standard language features.

https://github.com/facebook/create-react-app/blob/next/packages/react-scripts/config/webpack.config.dev.js#L260