Social buttons only work if haxelib.json url points to GitHub

[Gama11]

It makes sense for projects that have an official website to link to that in the haxelib.json, like flixel, openfl and HaxePunk are doing.

Unfortunately, this leads to the "social" buttons (fork and star) missing:

Not sure what the best solution here is (allow having two urls in the haxelib.json?), but it seems like it should be possible to link to an official website while also taking advantage of this "social" feature.

[ibilon]

npm has both a homepage and repository field

And since url is shown as "Website" on lib.haxe.org it doesn't make a lot of sense (semantically speaking) to put a github url in it.