fix pkg.go.dev license detection

[bnewbold]

fix pkg.go.dev license detection

[erka]

Github isn't happy about LICENSE.txt too.

Probably try to reformat that file is the first option.

[bnewbold]

I tried tweaking LICENSE.txt in #445 and that didn't fix it. As you mention Github is also confused but that doesn't really matter for the golang pkg website. Which is a great resource to host rendered docs!

A similar existing repo that does work is ipfs/kubo: https://pkg.go.dev/github.com/ipfs/kubo?tab=licenses

I tried downloading the licensecheck golang lib mentioned on pkg.go.dev and it gave higher confidence with the tweaked LICENSE.txt, which gave me hope that would fix it, but still get "License: UNKNOWN": https://pkg.go.dev/github.com/bluesky-social/indigo

I'm not sure if there is a specific confidence threshold or expected format or what.

[erka]

ipfs/go-ds-badger4 and ipfs/boxo have similar licenses and it works great. But ipfs/gateway-conformance has the same files as ipfs/kubo and it has the same issue as indigo. It looks something wrong or some manual work was done.

[bnewbold]

Finally resolved this in f8ba20dc70977589322ff20abe52bfc49796b8bb after testing a few variations as separate repos.

h/t to @imax9000 in 956bf05 who traced it down to the LICENSE file name. renaming to LICENSE-DUAL made pkg.go.dev happy.