add docs-content

Author: bmorelli25

.buildkite/pull-requests.org-wide.json

@@ -37,6 +37,7 @@
         "elastic/cloud",
         "elastic/cloud-on-k8s",
         "elastic/curator",
+        "elastic/docs-content",
         "elastic/ecctl",
         "elastic/ecs",
         "elastic/ecs-dotnet",