Add contribute.md

[BTANISHA11]

According to hactoberfest 2022 a file named contribute.md should be their .
I want to add that file and add some sections in it like

1. How to make a pull request
2. How to create an issue

Can you pls assign this to me @codemistic

[shashank-u03]

Hello!
I can create contribute.md file. Can you please assign this to me...