fix codeblock

docs/Detailinformationen/Authentifizierung_von_Usern.md

@@ -111,7 +111,7 @@ Entsprechend den [standartisierten Feldern](http://www.iana.org/assignments/jose
     "alg": "PS512",
     "n": "...Public Key..."
   },
-	"aud": "639c5be8-eb9c-4741-834e-4ad11629898a"
+  "aud": "639c5be8-eb9c-4741-834e-4ad11629898a",
   "domains": ["example.com", "sub.example.com"]
 }