docs: add fastest

see #3538 (comment)

Author: nigrosimone

README.md

@@ -4,7 +4,7 @@
 <span class="badge-npmversion"><a href="https://npmjs.org/package/pg" title="View this project on NPM"><img src="https://img.shields.io/npm/v/pg.svg" alt="NPM version" /></a></span>
 <span class="badge-npmdownloads"><a href="https://npmjs.org/package/pg" title="View this project on NPM"><img src="https://img.shields.io/npm/dm/pg.svg" alt="NPM downloads" /></a></span>
 
-Non-blocking PostgreSQL client for Node.js. Pure JavaScript and optional native libpq bindings.
+Non-blocking [Truly Fastest](https://github.com/nigrosimone/postgres-benchmarks) PostgreSQL client for Node.js. Pure JavaScript and optional native libpq bindings.
 
 ## Monorepo