Added/updated snippets for docs (#2318)

docs/doc_examples/cbfd6f23f8283e64ec3157c65bb722c4.asciidoc

@@ -0,0 +1,11 @@
+// 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.cat.templates({
+  v: "true",
+  s: "order:desc,index_patterns",
+});
+console.log(response);
+----