Add to README providence of fettle as a fork of statsig-io statuspage project

[gene1wood]

I was looking at the different options out there for open source status pages and found both fettle and Statsig's statuspage project.

Upon looking closer it looks like the design and code is similar and that fettle may be a fork of statuspage. I'm assuming fettle is a fork as it started a year after statuspage as opposed to the other way around.

Or fettle is a fork of some other project which itself is a fork of statuspage

Would it be possible to add to the README some information on the providence of fettle, what it was forked from, what the motivation for the fork was and how it differs from statuspage?

I think this would be helpful to users so they can understand how the projects relate and differ.