Motivation
Show the last review timestamp of the repository in order to signal the repository is not yet "dead" without a meaningless commit.
How to use
Put the following into your repository README.md. Remember to modify the repository URL to yours.
![Last Review](https://img.shields.io/badge/dynamic/json?url=https%3A%2F%2Fapi.github.com%2Frepos%2F<user>%2F<repo>&query=%24.updated_at&label=last%20review)
If you prefer a better date format, deploy and use the cloudflare worker.
![Last Review](https://img.shields.io/badge/dynamic/json?url=https%3A%2F%2F<YOUR_WORKER>.<YOUR_SUBDOMAIN>.workers.dev%2F<user>%2F<repo>&query=%24.reviewed_at&label=last%20review)
Just update the description of the repository, then the display badge will be updated (maybe with some delay).
Thanks