message: samples: make the comments for publishWithRetrySettings a bit more verbose
  Fixes:
diff: @@ -68,8 +68,9 @@ function main(
  messages: messages,
  };
  - // Retry settings control how the publisher handles retryable failures
  - // Default values are shown
  + // Retry settings control how the publisher handles retryable failures. Default values are shown.
  + // The `retryCodes` array determines which grpc errors will trigger an automatic retry.
  + // The `backoffSettings` object lets you specify the behaviour of retries over time.
  const retrySettings = {
  retryCodes: [
  10, // 'ABORTED'
  