Update setting_up_git.md

[theSamyak]

issue #28215
In the "Setting Up Git" lesson (setting_up_git.md), added a note section to clearly differentiate macOS-specific commands from general setup instructions.

Because

Added a note section in the "Setting Up Git" lesson to clearly differentiate macOS-specific commands from general setup instructions.

This PR

Added a note section in setting_up_git.md to highlight macOS-specific commands and also changed the title "macOS Users" to "For macOS Users" improving clarity for users.

Issue

Closes #28215

Additional Information

Pull Request Requirements

• I have thoroughly read and understand The Odin Project curriculum contributing guide
• The title of this PR follows the location of change: brief description of change format, e.g. Intro to HTML and CSS lesson: Fix link text
• The Because section summarizes the reason for this PR
• The This PR section has a bullet point list describing the changes in this PR
• If this PR addresses an open issue, it is linked in the Issue section
• If any lesson files are included in this PR, they have been previewed with the Markdown preview tool to ensure it is formatted correctly
• If any lesson files are included in this PR, they follow the Layout Style Guide

[xandora]

We have specific styling code for these types of note blocks. Just using > is not the right way to do it in this situation.

Please review the style guide and update this PR accordingly before we can consider merging it.

https://github.com/TheOdinProject/curriculum/blob/main/LAYOUT_STYLE_GUIDE.md#note-boxes

[xandora]

@theSamyak Thanks for working on the previous suggestions, just a couple of minor touches needed to get this ready to go.

[theSamyak]

@theSamyak Thanks for working on the previous suggestions, just a couple of minor touches needed to get this ready to go.

Hi, I messed up my commit history and there is still some linting issue and I apologize for it. I have cloned the project into VS Code and from now on, will make the changes and contributions from there to maintain a cleaner commit history and preserve my sanity. Thanks.

[xandora]

Looks good to me!