feat: ?ref=GHKN4L37 on outbound links (HF Space attribution)

README.md

@@ -15,18 +15,18 @@ short_description: Chat with DeepSeek R1 / V3 / Qwen 3.5 via QuickSilver Pro
 
 Try **DeepSeek V3**, **DeepSeek R1**, and **Qwen 3.5-35B-A3B** via an OpenAI-compatible endpoint — no signup required.
 
-Powered by [QuickSilver Pro](https://quicksilverpro.io), which serves the same top open-source models as OpenRouter / Together / Fireworks, at ~20% less per token.
+Powered by [QuickSilver Pro](https://quicksilverpro.io/?ref=GHKN4L37), which serves the same top open-source models as OpenRouter / Together / Fireworks, at ~20% less per token.
 
 - Full OpenAI-compatible API: drop-in replacement (`base_url` change only)
-- **$1** in free credits for every new account
+- **$5** in free credits for every new account signing up via this Space
 - Direct open-source model access — no proprietary routing, no "掺假"
 
 ## Links
 
-- **Get your own API key**: [quicksilverpro.io](https://quicksilverpro.io)
+- **Get your own API key ($5 credit)**: [quicksilverpro.io](https://quicksilverpro.io/?ref=GHKN4L37)
 - **CLI**: `pip install quicksilverpro` ([GitHub](https://github.com/machinefi/qspro-cli))
-- **Pricing**: [quicksilverpro.io/compare](https://quicksilverpro.io/compare)
+- **Pricing**: [quicksilverpro.io/compare](https://quicksilverpro.io/compare?ref=GHKN4L37)
 
 ---
 
-Built by [MachineFi Labs](https://quicksilverpro.io).
+Built by [MachineFi Labs](https://quicksilverpro.io/?ref=GHKN4L37).