Add example database section to dist config

warden_server/warden_server.cfg.dist

@@ -7,5 +7,10 @@
         "send_events_limit": 500,
         "get_events_limit": 1000,
         "description": "Warden 3 distribution config"
+    },
+    "DB": {
+        "user": "warden",
+        "password": "EXAMPLE",
+        "dbname": "warden3"
     }
 }
\ No newline at end of file