Title

docs: "Voice & TTS Providers" table on /docs/integrations has an extra empty column

Problem

In website/docs/integrations/index.md (lines 58–64), the separator and all data rows of the "Voice & TTS Providers" table start with || instead of |. Docusaurus parses the extra pipe as an empty leading cell, so the rendered table shows a blank first column and misaligned rows.

Current source

| Provider | Quality | Cost | API Key |
||----------|---------|------|---------|
|| **Edge TTS** (default) | Good | Free | None needed |
...

Repro

1. cd website && npm install && npm start
2. Open /docs/integrations → Voice & TTS Providers.
3. Observe empty leading column.

Fix

Replace || with | on lines 59–64:

sed -i '' '59,64 s/^||/|/' website/docs/integrations/index.md

Impact: cosmetic only.