v3.2.1: Add & rearrange examples around trading, incl demo and WS. Fix unintentional oid warning.

What's Changed

• feat: add multiple examples for futures and spot trading, including demo trading and websocket integration by @JJ-Cro in #631
• fix(v3.2.1, #632): unintentional order id warning by @tiagosiebler in #633

Full Changelog: v3.2.0...v3.2.1