Add a community and support section to the README

[vernu]

Why

The README had no pointer to the community or to support. Anyone stuck on the SDK had to go find the main repo first.

Changes

Adds a short "Community and support" section above the license, linking the Discord community and the support email. The link goes through textbee.dev/discord rather than a raw invite URL, so the invite can rotate without leaving a dead link in a published npm README.

🤖 Generated with Claude Code

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📥 Commits

Reviewing files that changed from the base of the PR and between b69c442 and 1b679f2.

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• README.md

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feat/discord-community-link

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