docs(readme.md): align tagline with WordPress.org short description

Author: PatelUtkarsh

readme.md

@@ -3,7 +3,7 @@
 [![Lint and Test](https://github.com/xwp/stream/actions/workflows/ci.yml/badge.svg)](https://github.com/xwp/stream/actions/workflows/ci.yml)
 [![Coverage Status](https://coveralls.io/repos/github/xwp/stream/badge.svg?branch=develop)](https://coveralls.io/github/xwp/stream?branch=develop)
 
-**A free, open source activity log and audit trail for WordPress — track every user and system action for debugging, security, and compliance.**
+**Activity log and audit trail for WordPress.** Track every user and system action for debugging, security, and compliance.
 
 - [Product Website](https://xwp.co/work/stream/)
 - [Plugin on WordPress.org](https://wordpress.org/plugins/stream/)