Create a md file for rec.py listing the GUI Buttons

[Devansh2005]

Create a Readme.md file listing about the buttons and functionalities of rec.py

[AvantSekai]

If you want to assign this to me. I can take this one.

[Devansh2005]

For sure @AvantSekai . Go Ahead.

[AvantSekai]

Sure I will submit a new PR with a functionality summary. Can you apply the label to the last PR and new one once ready "hacktoberfest-accepted" Thanks!

[Devansh2005]

Check it out @AvantSekai .