Issue 3254

[charlottejmc]

I've now added a warning box at the start of every lesson listed in Issue #3169 which were marked as needing minor or major changes. (The remaining lessons reference the Old Bailey Website, but don't actually rely on it to work.)

Closes #3254

Checklist

• Assign yourself in the "Assignees" menu
• Add the appropriate "Label"
• If this PR closes an Issue, add the phrase Closes #ISSUENUMBER to your summary above
• Ensure the status checks pass: if you have difficulty fixing build errors, please contact our Publishing Manager @anisa-hawes
• Check the Netlify Preview: navigate to netlify/ph-preview/deploy-preview and click 'details' (at right)
• Assign at least one individual or team to "Reviewers"
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[anisa-hawes]

Hello @charlottejmc. Thank you for preparing these warning boxes for us, and collaborating with the MEs to coordinate translations.

Thank you to @hawc2, @jenniferisasi, @marie-flesch and @ericbrasiln for supporting us. Tagging each of you here to confirm that the warning boxes are now in place.

I've visually checked the previews for each lesson we've applied the warning message to, and I'm happy to approve this PR.