fix 语法错误

document/admin-mysql.sql

@@ -771,11 +771,10 @@ CREATE TABLE `gen_demo`  (
   `remark` VARCHAR(200) COMMENT '备注',
   `beginTime` datetime(0) NULL DEFAULT NULL COMMENT '开始时间',
   `endTime` datetime(0) NULL DEFAULT NULL COMMENT '结束时间',
-  `feature` varchar(100) NULL COMMENT '特征'
+  `feature` varchar(100) NULL COMMENT '特征',
   PRIMARY KEY (`id`) USING BTREE
 ) ENGINE = InnoDB AUTO_INCREMENT = 10 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_general_ci ROW_FORMAT = Dynamic;
 
-GO
 -- ----------------------------
 -- Table structure for sys_file 文件存储
 -- ----------------------------