fix(docs): fixes to rag agents guide

[FelixNicolaeBucsa]

Proposed Changes

[describe the changes here...]

Linked Issues

[if applicable, add links to issues resolved by this PR]

Types of changes

What type of change does this pull request make (put an x in the boxes that apply)?

• [x] Content update.
• [ ] Bug fix (non-breaking change that fixes an issue).
• [ ] New feature added (non-breaking change that adds functionality).
• [ ] Breaking change (fix or feature that would cause existing functionality to stop working as expected).
• [ ] Something else (e.g., tests, scripts, example, deployment, infrastructure).

Checklist

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• [x] I have read the CONTRIBUTING guide
• [x] Checks and tests pass locally

Further comments

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[FelixNicolaeBucsa]

Made changes in PR#1067