Update README.md

Signed-off-by: Giovanni Liva <[email protected]>

Author: thisthat

README.md

@@ -1,6 +1,6 @@
 # Prometheus Service
 
-## Keptn V1 has reached end of life on December 22nd, 2023 similar to [Keptn V1](https://github.com/keptn/keptn).
+## Keptn V1 has reached end of life on December 22nd, 2023.
 
 ![GitHub release (latest by date)](https://img.shields.io/github/v/release/keptn-contrib/prometheus-service)
 [![Go Report Card](https://goreportcard.com/badge/github.com/keptn-contrib/prometheus-service)](https://goreportcard.com/report/github.com/keptn-contrib/prometheus-service)