[Bug] Documentaion: Incorrect reference link in https://dspy.ai/tutorials/rag/

[rifolio]

What happened?

On the DSPy optimization tutorial page, the hyperlink labeled "this tutorial" under the Optimizing prompts for RAG section points to [localhost](http://127.0.0.1:8000/quick-start/getting-started-01/) instead of the correct external link https://dspy.ai/tutorials/rag/.

Steps to reproduce

1. Go to: https://dspy.ai/learn/optimization/optimizers/
2. Scroll to the section titled “How do I use an optimizer?”
3. Select Optimizing prompts for RAG
4. Click the “this tutorial” link at the bottom of the code block
5. Observe that it tries to open http://127.0.0.1:8000/quick-start/getting-started-01/ instead of a live webpage

DSPy version

2.6.15

[okhat]

Thank you @rifolio ! Would you like to open a PR that fixes this? We'll merge it.

[rifolio]

Sure @okhat! Just opened PR #8012 with a few more little changes.