增加新板块冥想topic

每次环境报错都要发疯（抓狂ing），作为当代程序员良好的mental health是健康的基础，如果可以的话我想要分享如何meditation让人内心平静哈哈哈哈哈哈哈

Review the repository's existing section and topic structure and contribution guidance first; the issue names no specific file or test. Determine where a meditation topic belongs and what content format existing sections use, then verify the new section follows that organization and presentation.

Written by the indexing model from the issue text.