1.feat: 批量导出时, 新增带全部数据的单独 markdown 文件; #88
2.fix: 修复随机字符串使用了中文生僻字过多像乱码一样的问题: 不生成中文, 生成字母; #89
English：
1.feat: When batch exporting, add a separate markdown file with all data;
2.fix: fix the problem that the random string uses too many uncommon Chinese characters like garbled characters: not generate Chinese, generate letters;