Add color blindness accessibility guidelines (#40)

[sanchalitorpe-source]

Description of Changes

This pull request adds a summary of color blindness (color vision deficiency, CVD)
and provides practical accessibility guidelines for educational and professional materials.

It highlights:

• Types of color blindness (red-green, blue-yellow, total achromatopsia)
• Causes and symptoms
• Inclusivity guidelines: high-contrast palettes, patterns/text labels instead of color-only cues
• Tools like DaltonLens Colorblind Simulator

Goal: improve accessibility and inclusivity for color-blind individuals in AI, education, and presentations.

Related Issue

Closes #40

Type of Change

• ✍️ New Content — Adds new chapters, examples, or significant sections

Additional Notes (Optional)

Content is based on community discussion and resources from Issue #40.
No unrelated files are included.

Checklist

• I have searched open pull requests to avoid duplicates.
• I have built the book locally using the build instructions and verified my changes work as expected.
• I have written clear, conventional commit messages, as per the Pull Request Guidelines.

[netlify]

❌ Deploy Preview for stupendous-kringle-a86e81 failed.

Name	Link
🔨 Latest commit	a422354
🔍 Latest deploy log	https://app.netlify.com/projects/stupendous-kringle-a86e81/deploys/696dcc200aa8ff000873b52a

[sanchalitorpe-source]

Hi! I’ve submitted a PR (#459 ) for Issue #40.
It adds a summary of color blindness and practical accessibility guidelines.
Please review when convenient. Thanks!