docs(readme): add multi model example

README.md

@@ -25,7 +25,8 @@ async function main() {
  const chatCompletion = await openai.chat.completions.create({
  messages: [{ role: 'user', content: 'Say this is a test' }],
  model: 'router',
- // model: ['gpt-3.5-turbo', 'claude-v1'], // If more than one is specified, the router chooses the best among them
+ // If more than one model is specified, the router chooses the best among them
+ // model: ['gpt-3.5-turbo', 'claude-v1'],
  });
 }