Add a clearer explanation of the “fork → clone → commit → PR” workflow

[saitejx08]

The repository assumes users already understand how the GitHub forking workflow works. For beginners who come to this repository to make their first open-source contribution, this may feel confusing. Adding a short explanation or diagram can make the guide more beginner-friendly.

Why This Matters:

Zero-to-Mastery attracts many first-time contributors. A detailed and clear workflow helps them avoid common mistakes such as:
-Wrong branch commits
-Direct commits to the main repo
-Incorrect remote setup

Suggested Content to Add:
-A simple diagram showing the contribution workflow
-Step-by-step instructions on forking, cloning, creating a branch, committing, and pushing
--Example commands

git clone https://github.com//start-here-guidelines.git
git checkout -b my-update
git push origin my-update

[sophiabrandt]

I am unsure on what exactly you want to change.
The first step in the README goes to a link where Andrei explains Git & Github.
The README also has several links to external resources where you can learn more about Git, forks and branches.

Can you make an example PR on what you want to change?