Added/updated snippets for docs (#2318)

docs/doc_examples/b2b26f8568c5dba7649e79f09b859272.asciidoc

@@ -0,0 +1,12 @@
+// 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.security.putUser({
+  username: "saml-service-user",
+  password: "<somePasswordHere>",
+  roles: ["saml-service-role"],
+});
+console.log(response);
+----