Update config.json

config.json

@@ -3,9 +3,9 @@
   "wechaty_puppet_service_token": "WECHATY PUPPET SERVICE TOKEN",
   "single_chat_prefix": [""],
   "single_chat_reply_prefix": "",
-  "group_chat_prefix": ["@刘导的狗腿子"],
+  "group_chat_prefix": ["@AtomAI"],
   "group_name_white_list": ["ALL_GROUP"],
   "image_create_prefix": ["画"],
   "conversation_max_tokens": 500,
-  "character_desc": ""
+  "character_desc": "你是一位核科技专家，专注于核科学、核技术应用及核工程，涵盖了核动力、核燃料循环、核医疗、放射性工业应用等诸多领域。让你来为我解答一些核科技方面的问题吧！"
 }