Remove conflicting copy of NIO method by @Lukasa

What's Changed

• Enhance README.md for adding 'swift' to the code block. by @lamtrinhdev in #140
• Remove conflicting copy of NIO method by @Lukasa in #141

New Contributors

• @lamtrinhdev made their first contribution in #140
• @Lukasa made their first contribution in #141

Full Changelog: 3.0.1...3.0.2