Update meetings link on homepage

Author: keunes

src/content/docs/index.mdx

@@ -45,7 +45,7 @@ We invite all projects and individuals to join us in developing these specificat
 <CardGrid>
   <LinkCard title="Join the chatroom on Matrix" href="https://matrix.to/#/!ZHdcrdWSgxXRREuJdU:matrix.org" />
   <LinkCard title="Give input in our GitHub discussions" href="https://github.com/orgs/OpenPodcastAPI/discussions/categories/problem-definitions-solutions" />
-  <LinkCard title="Add our monthly meeting to your calendar" href="https://github.com/orgs/OpenPodcastAPI/discussions/15" />
+  <LinkCard title="Add our (infrequent) meetings to your calendar" href="https://framagenda.org/remote.php/dav/public-calendars/5jaa7TGGcaW8bf2B?export" />
 </CardGrid>
 
 <SponsorCallout