Replaced freenode with libera.chat

files/events/35C3/index.html

@@ -197,7 +197,7 @@ so you might have to talk to us if you want more info.
 <h2><span class="mw-headline" id="Getting_in_Touch">Getting in Touch</span><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/congress/2018/wiki/index.php?title=Assembly:C3Space&amp;action=edit&amp;section=3" title="Edit section: Getting in Touch">edit</a><span class="mw-editsection-bracket">]</span></span></h2>
 <ul><li>Location: <a rel="nofollow" class="external free" href="https://35c3.c3nav.de/l/c:0:464.34:382.39/">https://35c3.c3nav.de/l/c:0:464.34:382.39/</a></li>
 <li>IRC-Channel with bridges:
-<ul><li>IRC: #c3space on irc.freenode.net</li>
+<ul><li>IRC: #c3space on irc.libera.chat</li>
 <li>Matrix: #c3space:matrix.org, try <a rel="nofollow" class="external free" href="https://matrix.to/#/!LcdZSGllxqeQISyXUI:matrix.org?via=matrix.org">https://matrix.to/#/!LcdZSGllxqeQISyXUI:matrix.org?via=matrix.org</a></li></ul></li>
 <li>Twitter: <a rel="nofollow" class="external free" href="https://twitter.com/c3spacecentre">https://twitter.com/c3spacecentre</a></li>
 <li>Mastodon: <a rel="nofollow" class="external free" href="https://chaos.social/@C3SpaceCentre">https://chaos.social/@C3SpaceCentre</a></li></ul>

pages/36c3/index.md

@@ -53,7 +53,7 @@ so you might have to talk to us if you want more information.
 
 Getting in Touch
 ================
-* IRC: #c3space on irc.freenode.net
+* IRC: #c3space on irc.libera.chat:6697
 * Matrix: #c3space:matrix.org (bridged to IRC)
 * Twitter: [@c3spacecentre](https://twitter.com/c3spacecentre)
 * Mastodon: [@C3SpaceCentre](https://chaos.social/@C3SpaceCentre)

pages/index.md

@@ -15,7 +15,7 @@ explore existing projects and come up with new ideas to hack the final frontier.
 
 Getting in Touch
 ================
-* IRC: #c3space on irc.freenode.net
+* IRC: #c3space on irc.libera.chat
 * Matrix: #c3space:matrix.org (bridged to IRC)
 * Twitter: https://twitter.com/c3spacecentre
 * Mastodon: https://chaos.social/@C3SpaceCentre