v1.0.1: Add spot universal transfer (submitUniversalTransfer / getUniversalTransferRecords) plus RPI, Poloniex withdraw/deposit fields, and related spot/futures type updates

What's Changed

• feat: readme links by @tiagosiebler in #5
• fix: point readme template wiki URLs to sieblyio by @JJ-Cro in #6
• chore(): README.md template sections by @tiagosiebler in #7
• feat(v1.0.1): sync HTX API changelog since May by @JJ-Cro in #8

• Sync HTX Update Record changes since 2026-05-01 that were missing from the 1.0.0 publish
• Add spot universal transfer (submitUniversalTransfer / getUniversalTransferRecords) plus RPI, Poloniex withdraw/deposit fields, and related spot/futures type updates

Full Changelog: v1.0.0...v1.0.1