Added/updated snippets for docs (#2318)

docs/doc_examples/8fec06a98d0151c1d717a01491d0b8f0.asciidoc

@@ -0,0 +1,15 @@
+// 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.index({
+  index: "dsl-data-stream",
+  document: {
+    "@timestamp": "2023-10-18T16:21:15.000Z",
+    message:
+      '192.0.2.42 - - [06/May/2099:16:21:15 +0000] "GET /images/bg.jpg HTTP/1.0" 200 24736',
+  },
+});
+console.log(response);
+----