Fix event feed guidance

templates/schedule/external/feeds.html

@@ -5,7 +5,7 @@
 
 <h2>Your event feeds</h2>
 <p>If you want to publish events into the official EMF schedule you can import them here. It's fine to use this for both village content and events you're running all over the site.</p>
-<p>Schedules should be published in iCal format and will be updated every ten minutes. If you're not sure what this means, <b><a href="https://wiki.emfcamp.org/wiki/Publishing_Village_Schedules">read our guidance on setting up a feed of events</a></b>.
+<p>Schedules should be published in iCal format and will be updated every ten minutes. If you're not sure what this means, <b><a href="https://developer.emfcamp.org/schedule/#ical">there's an example in the documentation for the EMF official API here</a></b>.
 
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