Add Hubzilla link, update official account link

source/_data/gnusocial.json

@@ -32,11 +32,6 @@
             "url": "https://status.fsf.org/fsf",
             "avatar": "/img/avatars/fsf.png"
           },
-          {
-            "name": "CCC",
-            "url": "https://quitter.se/ccc",
-            "avatar": "/img/avatars/ccc.png"
-          },
           {
             "name": "the Vikings",
             "url": "https://social.vikings.net/vikings",

source/_data/mastodon.json

@@ -81,6 +81,11 @@
             "url": "https://mastodon.social/@indie",
             "avatar": "/img/avatars/indie.png"
           },
+          {
+            "name": "CCC",
+            "url": "https://social.bau-ha.us/@CCC",
+            "avatar": "/img/avatars/ccc.png"
+          },
           {
             "name": "Liberapay",
             "url": "https://mstdn.io/@Liberapay",

source/_data/worldi18n.json

@@ -138,7 +138,11 @@
           "reading":
             [
               {
-                "title": "Nomadic identity, by Hubzilla",
+                "title": "Hubzilla, the Post-Facebook social network",
+                "url": "https://medium.com/syntomic/the-post-facebook-social-network-d938748be527"
+              },
+              {
+                "title": "Nomadic identity in Hubzilla",
                 "url": "https://medium.com/@tamanning/nomadic-identity-brought-to-you-by-hubzilla-67eadce13c3b"
               },
               {