docs: added note about request-received

Readme.md

@@ -4,7 +4,7 @@
 [![npm version][npm-image]][npm-url]
 [![build status][travis-image]][travis-url]
 
- Development style logger middleware for [koa](https://github.com/koajs/koa).
+ Development style logger middleware for [koa](https://github.com/koajs/koa).  Compatible with [request-received](https://github.com/cabinjs/request-received).
 
 ___Notice: `koa-logger@2` supports `koa@2`; if you want to use this module with `koa@1`, please use `koa-logger@1`.___