Added/updated snippets for docs (#2318)

docs/doc_examples/698e0a2b67ba7842caa801d9ef46ebe3.asciidoc

@@ -0,0 +1,23 @@
+// 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({
+  query: {
+    match: {
+      "user.id": "kimchy",
+    },
+  },
+  highlight: {
+    require_field_match: false,
+    fields: {
+      body: {
+        pre_tags: ["<em>"],
+        post_tags: ["</em>"],
+      },
+    },
+  },
+});
+console.log(response);
+----