Fix OpenAI tutorial link (#22319)

Author: li-kai

src/content/docs/ai-gateway/get-started.mdx

@@ -42,7 +42,7 @@ Below is a list of our supported model providers:
 
 If you do not have a provider preference, start with one of our dedicated tutorials:
 
-- [OpenAI](/ai-gateway/integrations/aig-workers-ai-binding/)
+- [OpenAI](/ai-gateway/tutorials/deploy-aig-worker/)
 - [Workers AI](/ai-gateway/tutorials/create-first-aig-workers/)
 
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