docs: Add OpenSSF badge...

Author: UnoYakshi

README.md

@@ -4,6 +4,7 @@
 [![Black code style](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/ambv/black)
 [![Imports: isort](https://img.shields.io/badge/%20imports-isort-%231674b1)](https://pycqa.github.io/isort/)
 [![Ruff](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/charliermarsh/ruff/main/assets/badge/v0.json)](https://github.com/charliermarsh/ruff)
+[![OpenSSF Best Practices](https://www.bestpractices.dev/projects/7972/badge)](https://www.bestpractices.dev/projects/7972)
 
 Free Rent (it's called 'sharing') Application Among Neighbours [Decentralized] platform.
 Is a stuff sharing platform (aka social network).