chore: rename LICENCE to LICENSE

[gotmax23]

go mod vendor only recognizes certain names for license files when including them in vendors 1. Go recognizes LICENSE but not LICENCE so this change renames the file so it can be included in vendor and projects that use vendor can comply with grignotin's license terms.

[ldez]

🤔 Pragmatically, I tried it on other projects, the file LICENCE and other files like readme, YAML files, etc. are included when using go mod vendor.

So I don't understand exactly what is the problem.

[ldez]

🤔 I think those files are copied only if they are inside one of imported packages (or inside a package imported by a used package) of a module.

This is as unexpected as the fact to not support UK naming.

[ldez]

// ... By using this limited set of
// prefixes and also insisting on capitalized file names, we are trying
// to nudge people toward more agreement on the naming
// and also trying to avoid false positives.

What a joke... How a comment inside an internal package nudge people???

This feels like the worse approach ever to get an agreement on the naming: nobody know this rule...

There is a lot of Go projects where the license name is not capitalized and is not prefixed with LICENSE.

Sorry, it's not your fault.
I'm more than surprised by this "hidden nudge" by the Go team.

[gotmax23]

Thank you for the quick review!