Unit 1 READMEs (all 6 languages) link to 11 section files that no longer exist (77 dead links)

[yetuge]

Summary

All six units/<lang>/unit1/README.md files link to numbered section files that no longer exist in the repo:

• units/en/unit1/README.md — 11 dead links (1_definition_of_an_agent.md, 2_explain_llms.md, 3_messages_and_special_tokens.md, 4_dummy_agent_library.md, 5_tools.md, 6_agent_steps_and_structure.md, 7_thoughts.md, 8_actions.md, 9_observations.md, 10_quizz.md, 11_simple_use_case.md)
• units/es/unit1/README.md — 11
• units/fr/unit1/README.md — 11
• units/ko/unit1/README.md — 11
• units/ru-RU/unit1/README.md — 11
• units/zh-CN/unit1/README.md — 22 (the link table appears twice in that file)

Total: 77 dead relative links. Unit 1 content now lives in differently-named .mdx files (what-are-agents.mdx, what-are-llms.mdx, messages-and-special-tokens.mdx, dummy-agent-library.mdx, tools.mdx, agent-steps-and-structure.mdx, thoughts.mdx, actions.mdx, observations.mdx, quizzes), so the READMEs appear to predate the restructure.

Suggested directions

1. Remap each numbered link to its .mdx successor (needs a confirmed old→new mapping, e.g. 10_quizz.md → quiz1.mdx/quiz2.mdx/final-quiz.mdx), or
2. Replace the per-section tables with links to the published course pages, or
3. Remove the stale tables if the READMEs are no longer maintained.

I'm happy to prepare the remap once the intended mapping is confirmed.

Disclosure: this report was prepared with AI assistance (mechanical link audit, operated by @yetuge).