Add an Atom feed to follow new conference announcements

[lylo]

A revision of previously closed PR #339

Resolves #226

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Atom/RSS is an excellent way to follow updates to websites. Ruby Conferences is an excellent site but it's currently difficult to know when new conferences are added. This PR introduces an Atom feed to make tracking new conference announcements easier.

Notes:

• Uses the Jekyll feed plugin
• Adds a new announced_on field to conferences.yml to track the announcement date
• If an entry has no announced_on, it's ignored
• The feed is accessed at /feed.xml

[marcoroth]

Thanks @lylo, I think this could work!

I guess you just added some random dates to test, for now?

[lylo]

Yeah I didn't know the actual announcement dates (or how to find them without deep Google sleuthing) so just made them up. I guess it doesn't really matter for these since they're already announced! Future ones can have the real announcement dates.

[marcoroth]

When I add new conferences I usually put the announcement tweet in the PR description (i.e #544, #636, #560). So you could either use that, or otherwise use the date of the pull request when the event was added.

[lylo]

When I add new conferences I usually put the announcement tweet in the PR description (i.e #544, #636, #560). So you could either use that, or otherwise use the date of the pull request when the event was added.

Fixed in c7e161a using the commit date

[marcoroth]

I think this looks good to me! The only thing I would add is a link to mention the feed in the footer:

ruby-conferences.github.io/_layouts/default.html

Lines 45 to 50 in 2acc078

	<ul>
	<li><a href="https://twitter.com/rubyconferences">@rubyconferences</a></li>
	<li><a href="https://github.com/ruby-conferences/ruby-conferences.github.io">source</a></li>
	<li><a href="https://rubyconferences.org/calendar.ics">ics events calendar feed</a></li>
	<li><a href="https://rubyconferences.org/cfp.ics">ics CFP calendar feed</a></li>
	</ul>

[lylo]

I think this looks good to me! The only thing I would add is a link to mention the feed in the footer:

Added in 54e828e.

I called it RSS feed since that's the most common name despite the actual format being Atom. They're basically interchangeable. FWIW HEY World does the same thing 😅

[marcoroth]

Awesome, thank you so much @lylo! 🙌🏼