Fix: Add fork instructions to git lesson to resolve authentication er…

[Noorislam-XD]

…rors

• Updated Step 4 to require forking the repository first
• Clarified that students must clone from their own fork to be able to push
• Added optional instructions for syncing with upstream changes
• Updated Exercise 1 to include the fork step
• Fixes [bug] Directions in 00/02 Git and Collaboration #292: "Remote: Invalid username or token" error when trying to push to main repo

What this PR does

Kind of change

• New lesson
• Fix to an existing lesson
• Translation
• New output (prompt, skill, agent, MCP server)
• Docs / website / tooling

Checklist

• Code runs without errors with the listed dependencies
• No comments in code files (docs explain, code is self-explanatory)
• Built from scratch first, then shown with a framework (for new lessons)
• Lesson folder matches LESSON_TEMPLATE.md structure
• ROADMAP.md row for the lesson is a markdown link ([Name](phases/...)), not bare text
• One lesson per commit (atomic per-lesson rule)
• Tested locally / code output matches what docs/en.md claims

Phase / lesson

Notes for reviewer

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: f19f79c2-aeb6-455d-b3ed-9a4fc16b06a2

📥 Commits

Reviewing files that changed from the base of the PR and between b56c9f2 and 5759adc.

📒 Files selected for processing (1)

• phases/00-setup-and-tooling/02-git-and-collaboration/docs/en.md

✅ Files skipped from review due to trivial changes (1)

• phases/00-setup-and-tooling/02-git-and-collaboration/docs/en.md

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📝 Walkthrough

Walkthrough

The Git & Collaboration lesson doc is updated to replace the direct-clone workflow with a fork-first approach. The "Working with this course repo" section now instructs students to fork the repo, clone their fork, create a my-progress branch, push it, and optionally sync with upstream. The first exercise step is updated to match.

Changes

Fork-first workflow in Git & Collaboration lesson

Layer / File(s)	Summary
Fork-first workflow and exercise update phases/00-setup-and-tooling/02-git-and-collaboration/docs/en.md	"Working with this course repo" section replaces direct-clone instructions with fork, clone-fork, my-progress branch creation, push, and optional upstream sync steps via git remote add upstream, git fetch, and git merge upstream/main; first exercise step is updated to explicitly require forking before cloning, branching, committing, and pushing.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title correctly identifies the main change: adding fork instructions to resolve authentication errors in the git lesson.
Description check	✅ Passed	The description is related to the changeset, explaining the updates to git collaboration instructions and linking to the authentication error issue.
Linked Issues check	✅ Passed	The PR successfully addresses issue #292 by adding fork instructions, clarifying the clone-from-fork requirement, and updating exercises to prevent authentication errors.
Out of Scope Changes check	✅ Passed	All changes are scoped to the git lesson documentation, focusing on fork and clone instructions directly addressing the authentication error issue #292.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[coderabbitai]

🧹 Nitpick comments (1)

phases/00-setup-and-tooling/02-git-and-collaboration/docs/en.md (1)

76-76: 💤 Low value

Hardcoded repository URL may require maintenance if the repo location changes.

Lines 76 and 92 both reference the hardcoded GitHub URL https://github.com/rohitg00/ai-engineering-from-scratch. If the repository is ever moved or renamed, this lesson will provide outdated instructions. Consider whether a placeholder or variable reference would be more maintainable.

Also applies to: 92-92

🤖 Prompt for AI Agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@phases/00-setup-and-tooling/02-git-and-collaboration/docs/en.md` at line 76,
The documentation contains hardcoded references to the GitHub repository URL
https://github.com/rohitg00/ai-engineering-from-scratch in multiple locations
within the file. These hardcoded URLs require manual updates if the repository
is ever moved or renamed. Replace these hardcoded URL instances with a
placeholder variable or reference (such as a template variable like {{REPO_URL}}
or a note indicating where the actual repository URL should be substituted) to
make the documentation more maintainable and less prone to becoming outdated if
the repository location changes.

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Nitpick comments:
In `@phases/00-setup-and-tooling/02-git-and-collaboration/docs/en.md`:
- Line 76: The documentation contains hardcoded references to the GitHub
repository URL https://github.com/rohitg00/ai-engineering-from-scratch in
multiple locations within the file. These hardcoded URLs require manual updates
if the repository is ever moved or renamed. Replace these hardcoded URL
instances with a placeholder variable or reference (such as a template variable
like {{REPO_URL}} or a note indicating where the actual repository URL should be
substituted) to make the documentation more maintainable and less prone to
becoming outdated if the repository location changes.

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: 9b2eaf60-b7d6-41ca-a340-67e119460439

📥 Commits

Reviewing files that changed from the base of the PR and between 574a5d6 and b56c9f2.

📒 Files selected for processing (1)

• phases/00-setup-and-tooling/02-git-and-collaboration/docs/en.md