docs:fixed typo (or old documentation) in ipynb tutorial 3

[DavidGerva]

Related Issues

• no related issue, if I have to open one I will (I didn't find anything about this in the PR doc)

Proposed Changes:

I only fixed the key in the document dictionary format so write_documents() won't raise an error. By the way the write_documents() error is really explanatory. Tutorial updated: Tutorial3_Basic_QA_Pipeline_without_Elasticsearch.ipynb, as far as I understood no need to fix anything in the .py version

How did you test it?

No real-test needed I think, but I went trough the notebook executing every cell and I spot this error adding my own documents: changing the dictionary format fixed it.

Checklist

• I have read the contributors guidelines and the code of conduct
• I have updated the related issue with new insights and changes
• I added tests that demonstrate the correct behavior of the change
• I've used the conventional commit convention for my PR title
• I documented my code
• I ran pre-commit hooks and fixed any issue

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[tstadel]

LGTM!

[tstadel]

@DavidGerva could you please run python .github/utils/convert_notebooks_into_webpages.py on your branch and commit the md file, so the final check passes?

[DavidGerva]

@DavidGerva could you please run python .github/utils/convert_notebooks_into_webpages.py on your branch and commit the md file, so the final check passes?

Done!