change from http to https

[alexanderkjall]

always nice to have web traffic encrypted by default

[luojia65]

Is the crate author still active on web?

[SSheldon]

Yes, just not focusing much on these crates lately and only really responding to high-priority PRs. Sorry.

[LoganDark]

@SSheldon I mean, this is a pretty simple change, and hitting the merge button takes less effort than explaining why this isn't worth your time, so - why bother explaining, if you can just merge?

[SSheldon]

@LoganDark this and #81 have a conflict, so I should probably figure out what the right docs answer is for objc, and to find that answer I need to figure out how docs.rs handles documenting mac-only things, and if I want to switch I should probably scrap my code for generating docs for all my crates at once and I should switch all the other crates. And all of this is moot until I publish a new version, because that's the only time the metadata on crates.io is updated. So none of it sounds compelling enough to devote mental bandwidth to, and instead I just bury my head in the sand and ignore the PRs.