Found broken `/preparation-for-study/app.comflowy.com` link. Please fix!

Blue ocean,blue sky,white beach of Maldives,pink，roses of different sizes on the beach,blue roses, many tiny and colorful luminous particles，illuminated by the Milky way,Arctic,tundra and，iceberg,fantasy,high detail,beauty,8K,octane shading,complex details,ultra wide angle of view, panoramic shooting,8K.HD --ar 9:16

The issue body appears to be AI-generated image description spam, not a valid bug report. A newcomer would need to verify if the link '/preparation-for-study/app.comflowy.com' actually exists in the repository's documentation, likely in MDX files. Check for broken links in the codebase, but the issue lacks any real context or location.

索引モデルが issue の本文から書いたものです。