Added/updated snippets for docs (#2318)

docs/doc_examples/0c688eecf4ebdffdbe1deae0983c3ed8.asciidoc

@@ -0,0 +1,31 @@
+// This file is autogenerated, DO NOT EDIT
+// Use `node scripts/generate-docs-examples.js` to generate the docs examples
+
+[source, js]
+----
+const response = await client.search({
+  index: "user_hits",
+  size: 0,
+  aggs: {
+    users_per_day: {
+      date_histogram: {
+        field: "timestamp",
+        calendar_interval: "day",
+      },
+      aggs: {
+        distinct_users: {
+          cardinality: {
+            field: "user_id",
+          },
+        },
+        total_new_users: {
+          cumulative_cardinality: {
+            buckets_path: "distinct_users",
+          },
+        },
+      },
+    },
+  },
+});
+console.log(response);
+----