Add README

[MathyouMB]

As a contributor, I want a clear README.md in the root of the repo so I know how to set up the project, run tests, format code, and contribute new projects to the site.

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🧠 Context

Right now, the project repository does not include a README. Adding one will make onboarding easier for new contributors and document the expected workflow for development, testing, formatting, and adding student projects to the site.

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🛠️ Implementation Plan

1. Create a new README.md file at the root of the repo

2. Include the following sections:

📦 Setup

npm install
npm run dev

✅ Testing

npm run test

🎨 Formatting

npm run format

🛠️ Adding a New Project

1. Create a folder under content/projects/

2. Inside that folder, create an index.md file with the following frontmatter:

   ---
   id: "another-project"
   title: "Another Project"
   description: "This is a description of another project that showcases my skills in React Native and AR technology."
   author: "Matthew MacRae-Bovell"
   tags:
     - Example Tag
     - React Native
     - AR
   githubUrl: "https://github.com/sarahchen/campus-nav"
   previewImageUrl: "./placeholder.svg"
   ---

3. (Optional) Add a preview image to the same folder and reference it using the previewImageUrl field

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✅ Acceptance Criteria

• A README.md file exists at the root of the repo
• It includes setup, testing, and formatting instructions
• It contains a clear step-by-step guide for adding new projects with a sample frontmatter block