Added/updated snippets for docs (#2318)

docs/doc_examples/d44ecc69090c0b2bc08a6cbc2e3467c5.asciidoc

@@ -0,0 +1,21 @@
+// 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: "news",
+  query: {
+    simple_query_string: {
+      query: "+elasticsearch  +pozmantier",
+    },
+  },
+  _source: ["title", "source"],
+  highlight: {
+    fields: {
+      content: {},
+    },
+  },
+});
+console.log(response);
+----