Update documentation about adding calendars via https URLs

[sunkup]

Opening a http(s) URL for an .ics file in the browser does not redirect to ICSx5 anymore. webcal(s) URLs do still work though.

See the details in #246 (comment)

We should update the website documentation (Setup and QR Code sections) that http(s) URL's are not supported any more.

@devvv4ever Can you do that for us?

[devvv4ever]

Is it not possible anymore on a technical level?

The website is a github repo: https://github.com/bitfireAT/icsx5-website So you should be able to modify it at anytime to reflect the current capabilities of the app :) If you want me to do it, I can of course make a PR.

[sunkup]

Is it not possible anymore on a technical level?

I did not check the details, but according tot @ArnyminerZ it's not possible anymore.

The website is a github repo: https://github.com/bitfireAT/icsx5-website So you should be able to modify it at anytime to reflect the current capabilities of the app :) If you want me to do it, I can of course make a PR.

Ah, I overlooked that. I don't care who does it. If you don't want to, I will do it :)

[devvv4ever]

I commited the changes and they are visible now! Hope that's correct now :)

[ArnyminerZ]

Is it not possible anymore on a technical level?

I think it's technically possible, if the user manually enters the URL in the app's configuration in settings, but I think not all OEMs allow that, and it's quite strange to add, so I wouldn't even consider it as "supported".

[ArnyminerZ]

I'd say this issue is solved in https://icsx5.bitfire.at/usage/ right?