Fix link to proxy.pac article, add Advent Calendar article

i2p2www/pages/site/about/media.html

@@ -283,13 +283,18 @@ Robert Lei, December 31, 2018
 <li>{% trans mhatta='https://medium.com/@mhatta' -%}
 <a href="{{ mhatta }}">Articles by I2P contributor Masayuki Hatta on Medium.com</a>
 2019
-{% endtrans %}
+{% endtrans %}</li>>
 
-<li>{% trans ctrl='https://medium.com/@mhatta' -%}
+<li>{% trans ctrl='https://www.ctrl.blog/entry/proxy-pac-i2p-onion.html' -%}
 <a href="{{ ctrl }}">Enabling both .onion and .i2p routing with Proxy Auto-Configuration</a>
 Daniel Aleksandersen, February 7 2019
 {%- endtrans %}</li>
 
+<li>{% trans advent='https://www.heise.de/news/Open-Source-Adventskalender-Die-Darknets-Freenet-und-I2P-6302109.html' -%}
+<a href="{{ advent }}">Open-Source-Adventskalender: Die Darknets Freenet und I2P</a>
+Stefan Mey, December 21, 2021
+{%- endtrans %}</li>
+
 </ul>
 
 <h2>{{ _('Other') }}</h2>