feat: add module 1

README.md

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+# Git Workshop
+
+A hands-on, progressive git workshop with practical challenges ranging from basic to advanced concepts.
+
+## Workshop Structure
+
+Each module is a self-contained challenge that teaches specific git concepts:
+
+- **Module 01**: Git Basics (init, add, commit, status)
+- **Module 02**: Understanding the Staging Area
+- **Module 03**: Viewing History (log, diff)
+- **Module 04**: Branching Basics
+- **Module 05**: Merging
+- **Module 06**: Merge Conflicts
+- **Module 07**: Rebasing
+- **Module 08**: Interactive Rebase
+- **Module 09**: Cherry-pick
+- **Module 10**: Reset vs Revert
+- **Module 11**: Stash
+- **Module 12**: Working with Remotes
+
+## How to Use This Workshop
+
+1. Navigate to a module directory (e.g., `module-01-basics`)
+2. Read the `README.md` to understand the challenge
+3. Run `./setup.ps1` to create the challenge environment
+4. Complete the challenge using git commands
+5. Run `./verify.ps1` to check if you've solved it correctly
+6. Move to the next module
+
+## Requirements
+
+- Git installed and configured
+- PowerShell (Windows PowerShell 5.1+ or PowerShell Core 7+)
+- Basic command line knowledge
+
+## Getting Started
+
+Start with Module 01:
+
+```powershell
+cd module-01-basics
+.\setup.ps1
+```
+
+Follow the instructions in each module's README.md file.

module-01-basics/README.md

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+# Module 01: Git Basics
+
+## Learning Objectives
+
+- Understand what a git repository is
+- Learn the basic git workflow: modify → stage → commit
+- Use `git status` to check repository state
+- Use `git add` to stage changes
+- Use `git commit` to save changes
+
+## Challenge
+
+In this challenge, you'll learn the fundamental git workflow.
+
+### Setup
+
+Run the setup script to prepare the challenge:
+
+```powershell
+.\setup.ps1
+```
+
+This will create a directory called `challenge` with some files that need to be committed.
+
+### Your Task
+
+1. Navigate into the `challenge` directory
+2. Initialize a new git repository
+3. Check the status of your repository
+4. Stage the file `welcome.txt`
+5. Create a commit with the message "Add welcome file"
+6. Stage the file `instructions.txt`
+7. Create a commit with the message "Add instructions"
+
+### Key Concepts
+
+- **Repository**: A directory tracked by git, containing your project files and their history
+- **Working Directory**: The files you see and edit
+- **Staging Area (Index)**: A preparation area for your next commit
+- **Commit**: A snapshot of your staged changes
+
+### Useful Commands
+
+```bash
+git init                    # Initialize a new git repository
+git status                  # Show the working tree status
+git add <file>              # Stage a file for commit
+git commit -m "<message>"   # Create a commit with a message
+```
+
+### Verification
+
+Once you think you've completed the challenge, run:
+
+```powershell
+.\verify.ps1
+```
+
+This will check if you've successfully completed all the steps.

module-01-basics/challenge/instructions.txt

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+Git Basics Instructions
+========================
+
+The basic git workflow follows these steps:
+
+1. Make changes to files in your working directory
+2. Stage the changes you want to commit (git add)
+3. Commit the staged changes with a message (git commit)
+
+This workflow allows you to carefully select which changes
+to include in each commit, making your history clean and meaningful.

module-01-basics/challenge/welcome.txt

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+Welcome to Git Workshop!
+
+This is your first challenge. You'll learn the basics of git:
+- Initializing a repository
+- Staging changes
+- Creating commits
+
+Good luck!

module-01-basics/setup.ps1

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+#!/usr/bin/env pwsh
+
+<#
+.SYNOPSIS
+    Sets up the Module 01 challenge environment.
+
+.DESCRIPTION
+    Creates a challenge directory with files that need to be committed to git.
+    The student will need to initialize the repository and make commits.
+#>
+
+Write-Host "Setting up Module 01: Git Basics Challenge..." -ForegroundColor Cyan
+Write-Host ""
+
+# Remove existing challenge directory if it exists
+if (Test-Path "challenge") {
+    Write-Host "Removing existing challenge directory..." -ForegroundColor Yellow
+    Remove-Item -Path "challenge" -Recurse -Force
+}
+
+# Create challenge directory
+Write-Host "Creating challenge directory..." -ForegroundColor Green
+New-Item -ItemType Directory -Path "challenge" | Out-Null
+
+# Create welcome.txt
+$welcomeContent = @"
+Welcome to Git Workshop!
+
+This is your first challenge. You'll learn the basics of git:
+- Initializing a repository
+- Staging changes
+- Creating commits
+
+Good luck!
+"@
+
+Set-Content -Path "challenge/welcome.txt" -Value $welcomeContent
+
+# Create instructions.txt
+$instructionsContent = @"
+Git Basics Instructions
+========================
+
+The basic git workflow follows these steps:
+
+1. Make changes to files in your working directory
+2. Stage the changes you want to commit (git add)
+3. Commit the staged changes with a message (git commit)
+
+This workflow allows you to carefully select which changes
+to include in each commit, making your history clean and meaningful.
+"@
+
+Set-Content -Path "challenge/instructions.txt" -Value $instructionsContent
+
+Write-Host ""
+Write-Host "Setup complete!" -ForegroundColor Green
+Write-Host ""
+Write-Host "Next steps:" -ForegroundColor Cyan
+Write-Host "  1. cd challenge"
+Write-Host "  2. Read the README.md in the parent directory"
+Write-Host "  3. Complete the challenge"
+Write-Host "  4. Run ../verify.ps1 to check your solution"
+Write-Host ""

module-01-basics/verify.ps1

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+#!/usr/bin/env pwsh
+
+<#
+.SYNOPSIS
+    Verifies the Module 01 challenge solution.
+
+.DESCRIPTION
+    Checks if the student has correctly:
+    - Initialized a git repository
+    - Created two commits with the correct messages
+    - Committed the correct files
+#>
+
+Write-Host "Verifying Module 01: Git Basics Challenge..." -ForegroundColor Cyan
+Write-Host ""
+
+$allChecksPassed = $true
+
+# Check if challenge directory exists
+if (-not (Test-Path "challenge")) {
+    Write-Host "[FAIL] Challenge directory not found. Run setup.ps1 first." -ForegroundColor Red
+    exit 1
+}
+
+Set-Location "challenge"
+
+# Check if git repository exists
+if (-not (Test-Path ".git")) {
+    Write-Host "[FAIL] No git repository found. Did you run 'git init'?" -ForegroundColor Red
+    Set-Location ".."
+    exit 1
+}
+
+Write-Host "[PASS] Git repository initialized" -ForegroundColor Green
+
+# Check number of commits
+$commitCount = (git rev-list --all --count 2>$null)
+if ($commitCount -ne 2) {
+    Write-Host "[FAIL] Expected 2 commits, found $commitCount" -ForegroundColor Red
+    $allChecksPassed = $false
+} else {
+    Write-Host "[PASS] Correct number of commits (2)" -ForegroundColor Green
+}
+
+# Get commit messages (newest first)
+$commits = git log --pretty=format:"%s" --reverse 2>$null
+
+if ($commits) {
+    $commitArray = $commits -split "`n"
+
+    # Check first commit
+    if ($commitArray.Count -ge 1) {
+        if ($commitArray[0] -eq "Add welcome file") {
+            Write-Host "[PASS] First commit message correct" -ForegroundColor Green
+        } else {
+            Write-Host "[FAIL] First commit message incorrect. Expected 'Add welcome file', got '$($commitArray[0])'" -ForegroundColor Red
+            $allChecksPassed = $false
+        }
+
+        # Check files in first commit
+        $filesInFirstCommit = git diff-tree --no-commit-id --name-only -r HEAD~1 2>$null
+        if ($filesInFirstCommit -match "welcome.txt") {
+            Write-Host "[PASS] First commit contains welcome.txt" -ForegroundColor Green
+        } else {
+            Write-Host "[FAIL] First commit should contain welcome.txt" -ForegroundColor Red
+            $allChecksPassed = $false
+        }
+    }
+
+    # Check second commit
+    if ($commitArray.Count -ge 2) {
+        if ($commitArray[1] -eq "Add instructions") {
+            Write-Host "[PASS] Second commit message correct" -ForegroundColor Green
+        } else {
+            Write-Host "[FAIL] Second commit message incorrect. Expected 'Add instructions', got '$($commitArray[1])'" -ForegroundColor Red
+            $allChecksPassed = $false
+        }
+
+        # Check files in second commit
+        $filesInSecondCommit = git diff-tree --no-commit-id --name-only -r HEAD 2>$null
+        if ($filesInSecondCommit -match "instructions.txt") {
+            Write-Host "[PASS] Second commit contains instructions.txt" -ForegroundColor Green
+        } else {
+            Write-Host "[FAIL] Second commit should contain instructions.txt" -ForegroundColor Red
+            $allChecksPassed = $false
+        }
+    }
+}
+
+Set-Location ".."
+
+Write-Host ""
+if ($allChecksPassed) {
+    Write-Host "========================================" -ForegroundColor Green
+    Write-Host "  CONGRATULATIONS! Challenge Complete!  " -ForegroundColor Green
+    Write-Host "========================================" -ForegroundColor Green
+    Write-Host ""
+    Write-Host "You've mastered the basics of git!" -ForegroundColor Cyan
+    Write-Host "You can now move on to Module 02." -ForegroundColor Cyan
+    Write-Host ""
+} else {
+    Write-Host "========================================" -ForegroundColor Red
+    Write-Host "  Challenge Not Complete - Try Again!  " -ForegroundColor Red
+    Write-Host "========================================" -ForegroundColor Red
+    Write-Host ""
+    Write-Host "Review the errors above and try again." -ForegroundColor Yellow
+    Write-Host "Hint: Check 'git log' and 'git status' to see what you've done." -ForegroundColor Yellow
+    Write-Host ""
+    exit 1
+}