Update README.md

Author: igorcampos-dev

README.md

@@ -17,6 +17,7 @@ Below you will find a summary table of each subproject. For more details, please
 | Name                                          | Description                                                            |
 |-----------------------------------------------|------------------------------------------------------------------------|
 | [Spring Boot + Kafka](./spring-kafka-example) | Demonstrates a basic integration between Spring Boot and Apache Kafka. |
+| [Spring Boot + Grafana + Prometheus](./spring-prometheus-grafana-example) | Demonstrates a basic integration between Spring Boot With Grafana and Prometheus. |
 
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