Merge Greek translation review fixes into main

[Copilot]

This updates main with the Greek translation fixes needed to clear the Copilot review comments on PR microsoft#243. The changes are limited to the reviewed lesson translation files and correct broken links, text typos, and one malformed JSON example.

• Responsible AI disclaimer links

  • Replaced the broken relative disclaimer links in the Greek lesson translations with the correct root-relative target:
    • ../../README.md#responsible-ai-disclaimer
    • /README.md#responsible-ai-disclaimer

• Lesson text corrections

  • L03: corrected chain-of-though → chain-of-thought
  • L06: corrected 3 instances of A tool than can → A tool that can

• JSON example fix

  • L07: fixed the invalid JSON snippet by adding the missing comma after the description field

Example of the content-level fixes:

> [Αποποίηση ευθύνης για Responsible AI](/README.md#responsible-ai-disclaimer)

{
  "name": "add",
  "description": "Adding two numbers",
  "inputSchema": {
    "type": "object"
  }
}

[Copilot]

Pull request overview

This PR merges previously reviewed fixes into main for the Greek (.el) lesson translations, focusing on documentation correctness (links, typos) and a JSON snippet validity fix so the translated lessons render and copy/paste cleanly.

Changes:

• Updated Responsible AI disclaimer links in Greek lesson translations to use the repository-root target (/README.md#responsible-ai-disclaimer).
• Corrected minor text typos in Greek translations (e.g., chain-of-though → chain-of-thought, A tool than can → A tool that can).
• Fixed a malformed JSON example in the Lesson 07 Greek translation by correcting punctuation to valid JSON.

Reviewed changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
lessons/08-mcp-advanced/translations/README.el.md	Fixes the Responsible AI disclaimer link to the correct repo-root target.
lessons/07-mcp/translations/README.el.md	Fixes the disclaimer link and corrects a JSON snippet to be valid JSON.
lessons/06-tool-calling/translations/README.el.md	Fixes the disclaimer link and corrects “than” → “that” in repeated English bullet text.
lessons/05-rag/translations/README.el.md	Fixes the Responsible AI disclaimer link to the correct repo-root target.
lessons/04-structured-output/translations/README.el.md	Fixes the Responsible AI disclaimer link to the correct repo-root target.
lessons/03-prompt-engineering/translations/README.el.md	Fixes the disclaimer link and corrects chain-of-though → chain-of-thought.
lessons/02-first-ai-app/translations/README.el.md	Fixes the Responsible AI disclaimer link to the correct repo-root target.
lessons/01-intro-to-genai/translations/README.el.md	Fixes the Responsible AI disclaimer link to the correct repo-root target.

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