Reorder and Improve Learning Flow of Documentation Files

[sammy6378]

The documentation files under HTML, CSS, Git, and GitHub are not currently ordered in a proper learning sequence. For beginners, this makes it harder to follow step by step.

We need to:

1. Reorder the documentation files in each subject to follow a logical progression.

   • Example for HTML:

     1. Introduction to HTML
     2. HTML Structure (head, body, elements)
     3. Text Formatting
     4. Links & Images
     5. Lists & Tables
     6. Forms
     7. Semantic HTML

   • Do the same for CSS, Git, and GitHub.

2. Improve descriptions and explanations where needed so each lesson builds on the previous one.

3. Update sidebar/navigation so the docs reflect this new order.

Why this matters:
A well-ordered documentation makes it easier for learners to start from the basics and gradually move to advanced concepts, improving the overall learning experience.

Acceptance Criteria:

• Files under HTML, CSS, Git, and GitHub are reordered into a beginner-friendly flow
• Content is checked for clarity and completeness
• Sidebar is updated to reflect the correct order