update example configuration file

gallery-dl.conf

@@ -12,6 +12,7 @@
             {
                 "directory_fmt": ["{category}", "my bookmarks"]
             },
+            "ugoira": true,
             "username": null,
             "password": null
         },
@@ -19,25 +20,17 @@
         {
             "wait-min": 3,
             "wait-max": 6,
-            "cookies":
+            "username": null,
-            {
+            "password": null
-                "ipb_member_id": null,
-                "ipb_pass_hash": null
-            }
         },
         "nijie":
         {
-            "email": null,
+            "username": null,
             "password": null
         },
         "gelbooru":
         {
-            "filename_fmt": "{category}_{id:>07}_{md5}.{extension}",
+            "filename_fmt": "{category}_{id:>07}_{md5}.{extension}"
-            "cookies":
-            {
-                "user_id": null,
-                "pass_hash": null
-            }
         }
     }
 }