Add “Usage Example” section to README

[Dippp10]

Feature description

@aditiagarwal34550 ji, The README currently explains the repository mission, but it would help newcomers to see a quick “Usage Example” of how to clone, run tests or implement a new algorithm. I would add a short code snippet and instructions.
Skills: Markdown, very light code.

[Dippp10]

@aditiagarwal34550 ji, do assign hackoctoberfest-accepted label to above new issue that i have created....do assign above issue number 13714 to me.......

[Aspirant200715]

Hi, since this issue has been open for a long time, I have already created a pull request for it, including everything required for developers to contribute to it.
You may not have read the code of conduct, which clearly states that you should not wait for maintainers to assign a task to you. Therefore, I have taken this opportunity to contribute to your idea, abiding by the rules.

[Aspirant200715]

would request maintainers to kindly look into my contribution and merge it accordingly

[Aujasyarajput18]

i have already contributed #13726 2 days ago