Update error_pages.rst

[amine-betari]

No description provided.

[amine-betari]

@wouterj @javiereguiluz
What to you think about this ?

[javiereguiluz]

Thanks for this contribution. Sadly, we have multiple PRs about the same thing. See #12687 and #12692, so we'll need to merge all these PRs carefully and keep the best of each one. Thanks.

[amine-betari]

@javiereguiluz noted

Thank you

[javiereguiluz]

@amine-betari at the end we decided to merge #12687 instead of this one because it makes more changes needed in this article. Thanks for understanding and thanks for your contribution even if this time it didn't make it.