Added/updated snippets for docs (#2318)

docs/doc_examples/6843d859e2965d17cad4f033c81db83f.asciidoc

@@ -0,0 +1,19 @@
+// 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.indices.putIndexTemplate({
+  name: "my-data-stream-template",
+  index_patterns: ["my-data-stream*"],
+  data_stream: {},
+  priority: 500,
+  template: {
+    settings: {
+      "sort.field": ["@timestamp"],
+      "sort.order": ["desc"],
+    },
+  },
+});
+console.log(response);
+----