docs: 📝 git clone methods are extended and shallow copy method also a…

…dded

Signed-off-by: Onuralp SEZER <[email protected]>

CONTRIBUTING.md

@@ -128,15 +128,27 @@ PRs must pass all tests and linting requirements before they can be merged.
 
 Before starting your work on the project, set up your development environment:
 
-1. Clone your fork of the project:
+1. Clone your fork of the project (recommended to use shallow clone of develop branch):
+
+    **Option A: Full repository clone (if you need complete history):**
 
     ```bash
     git clone https://github.com/YOUR_USERNAME/supervision.git
     cd supervision
+    git checkout develop
+    ```
+
+    **Option B: Recommended for most contributors (shallow clone of develop branch):**
+
+    ```bash
+    git clone --depth 1 -b develop https://github.com/YOUR_USERNAME/supervision.git
+    cd supervision
     ```
 
     Replace `YOUR_USERNAME` with your GitHub username.
 
+    > Note: Using `--depth 1` creates a shallow clone with minimal history and `-b develop` ensures you start with the development branch. This significantly reduces download size while providing everything needed to contribute.
+
 2. Create and activate a virtual environment:
 
     ```bash