Customized the Readme.md

[YoshithaRathnayake]

Goals

Beautify the Readme.md

Approach

I added some images and so many things to the Readme.md

Screenshots

Preview Link

https://github.com/Yoshitha-SACK/ACF-GIT#readme

Checklist

• [x] This PR doesn't commit any keys, passwords, tokens, usernames, or other secrets.
• [ ] I have read and understood the development best practices guidelines
• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my own code
• [ ] I have commented my code, particularly in hard-to-understand areas
• [x] I have made corresponding changes to the documentation

Related PRs

## Test environment ## Learning