Added/updated snippets for docs (#2318)

docs/doc_examples/c012f42b26eb8dd9b197644c3ed954cf.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.index({
+  index: "my-index-000001",
+  id: 2,
+  document: {
+    name: {
+      first: "Paul",
+      last: "McCartney",
+      title: {
+        value: "Sir",
+        category: "order of chivalry",
+      },
+    },
+  },
+});
+console.log(response);
+----