This commit replaces the unknown `is-warning` CSS class from an alert in the `updating-content-github-ui` guide with the `is-important` CSS class (that causes the alert to be given an orange-ish background). PR Close #41250
This commit replaces the unknown `is-warning` CSS class from an alert in the `updating-content-github-ui` guide with the `is-important` CSS class (that causes the alert to be given an orange-ish background). PR Close #41250