docs: Added a react lighthouse viewer

[mikeendale]

Added a react lighthouse viewer npm module to the related projects list.

Summary

Updated Documentation.

Added a useful integration with React.

https://github.com/blencorp/react-lighthouse-viewer/blob/master/README.md

Related Issues/PRs

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[mikeendale]

I signed it!

[googlebot]

CLAs look good, thanks!

Googlers can find more info about SignCLA and this PR by following this link.

[patrickhulce]

LGTM thanks @dotmike !

[brendankenny]

LGTM :)

[mikeendale]

Thanks 👍