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

Co-authored-by: ldecarvalho-doc <[email protected]>

Author: Katsuyu

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

@@ -24,7 +24,7 @@ In this page, we will show you how to federate your Scaleway product metrics usi
  - A running [Prometheus](https://prometheus.io) instance
 
 <Message type="info">
-  The `/federate` endpoint will not be charged during beta phase but please note that after the beta
+  The `/federate` endpoint will not be billed during the beta phase. After the beta, the endpoint will incur additional costs.
 </Message>
 
 <Message type="important">