DOCS UPDATE: Improve README — Missing Landing Page Description & Minor Enhancements

### Is this related to an existing part of the documentation?

- [x] Yes, it is related to an existing section

### What needs to be updated?

## 📌 Current Documentation Issue

The README is missing any information about the landing page — what it looks like, what purpose it serves, or how users are expected to start interacting with the platform. Since the landing page is the first thing creators or brands will see, having it documented would make the project easier to understand for contributors and new users.
There are also a few minor formatting inconsistencies and places where the structure could be cleaned up for better readability.

## ✨ Proposed Changes
Add a Landing Page Overview section to the README, explaining:

What the landing page contains
How users begin onboarding
Key elements (hero section, CTAs, login/signup options, etc.)
Optionally include screenshots or links to the relevant frontend files, if maintainers approve
Clean up a few small formatting issues (spacing, headings, clarity) to make the README easier to follow

## 📋 Additional Context
I’m planning to open a PR to add the landing page description and make the small readability improvements.
If there’s any specific layout, design reference, or upcoming UI update I should follow, please let me know before I start working on it.

### Relevant Documentation Link (if any)

_No response_

### Record

- [x] I agree to follow this project's Code of Conduct
- [x] I want to work on this update