Apply suggestion from @Blargian

Co-authored-by: Shaun Struwig <41984034+Blargian@users.noreply.github.com>

Author: dhtclk

docs/use-cases/observability/clickstack/integration-examples/redis-metrics.md

@@ -72,7 +72,7 @@ redis-cli -a <your-password> ping
 ClickStack allows you to extend the base OpenTelemetry collector configuration by mounting a custom configuration file and setting an environment variable. The custom configuration is merged with the base configuration managed by HyperDX via OpAMP.
 
 Create a file named `redis-metrics.yaml` with the following configuration:
-```yaml
+```yaml title="redis-metrics.yaml"
 receivers:
   redis:
     endpoint: "localhost:6379"