Update charts/backstage/Chart.yaml

Co-authored-by: Armel Soro <[email protected]>

charts/backstage/Chart.yaml

@@ -13,7 +13,7 @@ annotations:
   charts.openshift.io/supportURL: https://github.com/redhat-developer/rhdh-chart/issues
 apiVersion: v2
 description: |
-  A Helm chart for deploying Red Hat Developer Hub
+  A Helm chart for deploying Red Hat Developer Hub.
 
   The telemetry data collection feature is enabled by default. Red Hat Developer Hub sends telemetry data to Red Hat by using the `backstage-plugin-analytics-provider-segment` plugin. To disable this and to learn what data is being collected, see https://access.redhat.com/documentation/en-us/red_hat_developer_hub/1.2/html-single/administration_guide_for_red_hat_developer_hub/index#assembly-rhdh-telemetry_admin-rhdh