fix[documentation]: Update links to point to correct pages (#549)

# What does this PR do?

In short, provide a summary of what this PR does and why. Usually, the
relevant context should be present in a linked issue.

- [x] Addresses issue (#548)


## Test Plan

Please describe:
No automated tests. Clicked on each link to ensure I was directed to the
right page.

## Sources


## Before submitting

- [x] This PR fixes a typo or improves the docs (you can dismiss the
other checks if that's the case).
- [x] Ran pre-commit to handle lint / formatting issues.
- [x] Read the [contributor
guideline](https://github.com/meta-llama/llama-stack/blob/main/CONTRIBUTING.md),
      Pull Request section?
- [x] Updated relevant documentation.
- [ ] ~Wrote necessary unit or integration tests.~

docs/zero_to_hero_guide/05_Memory101.ipynb

@@ -373,7 +373,7 @@
    "source": [
     "Awesome, now we can embed all our notes with Llama-stack and ask it about the meaning of life :)\n",
     "\n",
-    "Next up, we will learn about the safety features and how to use them: [notebook link](./05_Safety101.ipynb)"
+    "Next up, we will learn about the safety features and how to use them: [notebook link](./06_Safety101.ipynb)."
    ]
   }
  ],