add paid plugin simple-contact-form-pro

[haywardTsoi]

add paid plugin simple-contact-form-pro

[saade]

Hey! Thanks for submitting your paid plugin.

As per our guidelines, paid plugins must have public documentation so users can understand how to use them before purchasing. A simple way to achieve this is by creating a public GitHub repository — for example, something like your-plugin-name-docs — and adding a README.md with the relevant documentation.

Let us know once that’s available or if you have any questions!

[haywardTsoi]

Readme has been added , thanks!