Update docs

Author: smalyshev

docs/reference/cluster/stats.asciidoc

@@ -19,7 +19,6 @@ Returns cluster statistics.
 
 * If the {es} {security-features} are enabled, you must have the `monitor` or
 `manage` <<privileges-list-cluster,cluster privilege>> to use this API.
-
 [[cluster-stats-api-desc]]
 ==== {api-description-title}
 
@@ -1522,7 +1521,11 @@ This may include requests where partial results were returned, but not requests
 
 =======
 
+
 ======
+`_esql`:::
+(object) Contains the information about the ES|QL <<esql-cross-clusters,cross-cluster queries>> usage in the cluster.
+The structure of the object is the same as the `_search` object above.
 
 =====