doc: 在README.md链接wiki

README.md

@@ -1,5 +1,6 @@
 # QChatGPT🤖
 
+- 到[项目Wiki](https://github.com/RockChinQ/QChatGPT/wiki)可了解项目详细信息
 - 测试号: 2196084348
 - 交流、答疑群: 204785790 
   - **进群提问前请您`确保`已经找遍文档和issue均无法解决**  

pkg/database/manager.py

@@ -49,14 +49,14 @@ class DatabaseManager:
         )
         """)
 
-        self.execute("""
-        create table if not exists `api_key_usage`(
-            `id` INTEGER PRIMARY KEY AUTOINCREMENT,
-            `key_md5` varchar(255) not null,
-            `timestamp` bigint not null,
-            `usage` bigint not null
-        )
-        """)
+        # self.execute("""
+        # create table if not exists `api_key_usage`(
+        #     `id` INTEGER PRIMARY KEY AUTOINCREMENT,
+        #     `key_md5` varchar(255) not null,
+        #     `timestamp` bigint not null,
+        #     `usage` bigint not null
+        # )
+        # """)
 
         self.execute("""
         create table if not exists `account_fee`(