Added Jürgen Adler

blogs2.json

@@ -661,5 +661,10 @@
         "title": "Frank G. Clemmensen",
         "url": "https://fgcphotos.com/",
         "feed": "https://fgcphotos.com/feed/"
+    },
+    {
+        "title": "Jürgen Adler",
+        "url": "https://www.juergen-adler.de/",
+        "feed": "https://www.juergen-adler.de/rss/blog"
     }
 ]