docs(README): link Lifecycle in Polling Helpers section (#962)

Author: guspan-tanadi

README.md

@@ -115,7 +115,7 @@ const run = await openai.beta.threads.runs.createAndPoll(thread.id, {
 });
 ```
 
-More information on the lifecycle of a Run can be found in the [Run Lifecycle Documentation](https://platform.openai.com/docs/assistants/how-it-works/run-lifecycle)
+More information on the lifecycle of a Run can be found in the [Run Lifecycle Documentation](https://platform.openai.com/docs/assistants/deep-dive/run-lifecycle)
 
 ### Bulk Upload Helpers