Update Lieferando (#6433)

entries/l/lieferando.de.json

 {
   "Lieferando": {
     "domain": "lieferando.de",
-    "url": "https://www.lieferando.de/en/",
-    "contact": {
-      "email": "info@lieferando.de",
-      "facebook": "lieferando",
-      "twitter": "lieferando"
-    },
+    "tfa": [
+      "email"
+    ],
+    "documentation": "https://lieferando.de/kundenservice/artikel/warum-muss-ich-bei-der-anmeldung-einen-code-eingeben",
     "keywords": [
       "food"
     ],
@@ -14,4 +12,4 @@
       "de"
     ]
   }
-}
\ No newline at end of file
+}