[3.x] Add badge to show number of project installations

reactphp / promise

Promises/A implementation for PHP.

https://reactphp.org/promise/

MIT License

2.38k stars 146 forks source link

Closed SimonFrings closed 2 years ago

SimonFrings commented 2 years ago

This PR adds a badge with the number of installation on packagist to the README.

Builds on top of reactphp/socket#285.