Update pages/cockpit/how-to/federate-scaleway-metrics.mdx

Co-authored-by: Jessica <[email protected]>

Author: Katsuyu

pages/cockpit/how-to/federate-scaleway-metrics.mdx

@@ -69,7 +69,7 @@ Modify the different `match[]` parameters according to the metrics you want to r
 
 Once you have configured your `prometheus.yml` file, you can use docker-compose to run your Prometheus instance with the configuration, and start federating Scaleway product metrics.
 
-1. Create a `docker-compose.yml` file with :
+1. Create a `docker-compose.yml` file with:
     ```yaml
     services:
     prometheus: