message: Fix doctest for `Options::with_static_creds`
diff: @@ -212,6 +212,7 @@ impl Options {
  /// ";
  ///
  /// let nc = nats::Options::with_static_credentials(creds)
  + /// .expect("failed to parse static creds")
  /// .connect("connect.ngs.global")?;
  /// # Ok(())
  /// # }
  