Added/updated snippets for docs (#2318)

docs/doc_examples/a9dd9595e96c307b8c798beaeb571521.asciidoc

@@ -0,0 +1,13 @@
+// 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.ml.upgradeJobSnapshot({
+  job_id: "low_request_rate",
+  snapshot_id: 1828371,
+  timeout: "45m",
+  wait_for_completion: "true",
+});
+console.log(response);
+----