Add detail on the default resource request (#871)

Author: jordansissel

docs/k8s-quickstart.asciidoc

@@ -43,6 +43,8 @@ kubectl -n elastic-system logs -f statefulset.apps/elastic-operator
 
 Apply a simple link:{ref}/getting-started.html[Elasticsearch] cluster specification, with one node:
 
+Note: The default resource request is 2gb memory and 100m cpu, and your pod will be `Pending` if your cluster does not have enough resources.
+
 [source,yaml]
 ----
 cat <<EOF | kubectl apply -f -