update api template

FreifunkStuttgart-api.json

 {
-  "api": "0.5.0",
+  "api": "0.5.2",
   "contact": {
     "email": "info@freifunk-stuttgart.de",
-    "jabber": "ffs@conference.jabber.lihas.de",
-    "ml": "misc@freifunk-stuttgart.de"
+    "ml": "misc@freifunk-stuttgart.de",
+    "mastodon": "https://chaos.social/@ffs",
+    "matrix": "https://matrix.to/#/#ffs:freifunk-stuttgart.de"
   },
   "feeds": [
     {
@@ -30,6 +31,7 @@
       "url": "https://map.freifunk-stuttgart.de/data/nodelist.json"
     }
   ],
+  "services": [],
   "socialprojects": {
     "contact": "freifunkhilft@freifunk-stuttgart.de",
     "number": 90,
@@ -44,8 +46,8 @@
       "Local services and content",
       "Free internet access"
     ],
-    "lastchange": "2022-08-07T20:15:01.618140Z",
-    "nodes": 1354
+    "lastchange": "2023-12-30T14:45:01.385934Z",
+    "nodes": 1330
   },
   "techDetails": {
     "dns": [
@@ -78,6 +80,12 @@
         },
         {
           "network": "fd21:b4dc:4b00::/40"
+        },
+        {
+          "network": "2001:67c:d78::/48"
+        },
+        { 
+          "network": "2a0f:d607::/44"
         }
       ]
     },
@@ -88,6 +96,5 @@
       "autoupdate"
     ]
   },
-  "url": "https://freifunk-stuttgart.de",
-  "services": []
+  "url": "https://freifunk-stuttgart.de"
 }