补充资料类项目（公益）

https://github.com/PublicWebDB

The issue links to an external repository, PublicWebDB, but does not specify what change is needed in the current Blog repository. A newcomer would need to understand the relationship between the two projects and what specific documentation or content is to be added. Start by examining the linked repository to see if there are instructions for integration. Without a clear task in the issue body, it's difficult to proceed.

索引モデルが issue の本文から書いたものです。