Update README.md

Author: hhftechnology

README.md

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 A specialized Docker container that extends the official Tailscale image to enable secure networking and certificate management within Docker Compose environments. This container acts as a sidecar, automatically managing Tailscale certificates and sharing them across your containerized services.
 
-[![Docker Hub](https://img.shields.io/docker/v/hhftechnology/tailscale-sidecar?sort=semver)](https://hub.docker.com/r/hhftechnology/tailscale-sidecar)
+[![Docker Hub](https://img.shields.io/docker/v/hhftechnology/tailscale-sidecar)](https://hub.docker.com/r/hhftechnology/tailscale-sidecar)
 
 ## Features