Update README.md

Co-authored-by: Mateo Bartellini Huapalla <mbartellini@itba.edu.ar>
Co-authored-by: Ezequiel Bellver <bellverezequiel@gmail.com>
Co-authored-by: Juan Martin Barmasch <jbarmasch@itba.edu.ar>

README.md

@@ -1,2 +1,34 @@
-## MA
+# Prometheus and Grafana monitoring for Spring Boot application
 
+This project demonstrates how to set up monitoring for a Spring Boot application using Prometheus and Grafana.
+
+## Running the project
+
+1. Clone the repository.
+2. Start the containers using Docker Compose:
+
+```bash
+docker-compose up -d
+```
+
+3. Access Grafana at http://localhost:3000.
+4. Navigate to the `Dashboard` section and select `calls-count-dashboard`.
+
+## Usage
+
+- Prometheus scrapes metrics from the `/metrics` endpoint of the Spring Boot application every 15 seconds at http://localhost:8080/metrics.
+- The `/metrics` endpoint includes a `call_counter` variable, which increases each time the `/data` endpoint is called. You can manually increase the counter by executing:
+
+```bash
+curl http://localhost:8080/data
+```
+
+- When Prometheus scrapes the `/metrics` endpoint, it automatically restarts the counter.
+
+## Contributors
+
+- Juan Martín Barmasch
+- Mateo Bartellini Huapalla
+- Ezequiel Bellver
+- Santiago Lo Coco
+- Juan Manuel Negro