[Docs] Enable HTTPS

[calvellido]

Github pages is silently trialing Let's Encrypt support for some GitHub Pages sites. Here can be checked whether Arrow has been lucky or not:

https://github.com/arrow-kt/arrow/settings

If not, there are some other ways to go, also. IMO it would be nice have this on the docs site, even if we don't treat sensitive info there.

[pakoito]

Unavailable for your site because you have a custom domain configured (arrow-kt.io)
HTTPS provides a layer of encryption that prevents others from snooping on or tampering with traffic to your site. When HTTPS is enforced, your site will only be served over HTTPS.

[calvellido]

So it seems that we don't have the option available yet, let's wait for this feature to get fully rolled out then 👍

[dtchepak]

Maybe consider Cloudflare to get https over all of arrow-kt.io?

[andrzejressel]

https://blog.github.com/2018-05-01-github-pages-custom-domains-https/

[calvellido]

🔥 🔥 🔥

[pakoito]

Unavailable for your site because your domain is not properly configured to support HTTPS (arrow-kt.io)

I don't have access to the website config to enable https. @calvellido should!

[calvellido]

The A records for the domain have been updated and the DNS changes have been propagated, the last step is to re-add the custom domain info in the repo, which I'm gonna do it now 👍

[calvellido]

...and done! 👌

https://arrow-kt.io/

@pakoito you might want to enforce all browsing now to use HTTPS on that GitHub option, now it should let you do it.

[pakoito]

Aaaaand done! Thank you to everyone for keeping an eye on this ^^