git-fresh-branch: add page

[Sadeeed]

• The page(s) are in the correct platform directories: common, linux, osx, windows, sunos, android, etc.
• The page(s) have at most 8 examples.
• The page description(s) have links to documentation or a homepage.
• The page(s) follow the content guidelines.
• The PR title conforms to the recommended templates.
• Version of the command being documented (if known):

#5137

[Sadeeed]

For the maintainers / reviewers
Although I am following the command mnemonic structure, I can not find anything about in the style guide and it'd be great if someone could help me understand it fully so I don't miss any thing in the future.

Thanks

[reinhart1010]

For the maintainers / reviewers Although I am following the command mnemonic structure, I can not find anything about in the style guide and it'd be great if someone could help me understand it fully so I don't miss any thing in the future.

Thanks

We originally introduce them as a workaround to document commands without long parameter names, such as the ones in the Command Prompt (Windows).

[reinhart1010]

By the way, here are some reviews from mine.

[kbdharun]

Thanks for your contribution. LGTM after @reinhart1010's suggestions.

[reinhart1010]

Thanks!