Add maintainers wanted to readme

Closes #687

README.md

@@ -3,10 +3,15 @@ Cabot
 [![Build Status](https://travis-ci.org/arachnys/cabot.svg?branch=master)](https://travis-ci.org/arachnys/cabot) 
 [![PyPI version](https://badge.fury.io/py/cabot.svg)](https://badge.fury.io/py/cabot)
 [![Coverage Status](https://codecov.io/github/arachnys/cabot/coverage.svg?branch=master)](https://codecov.io/github/arachnys/cabot?branch=master)
-[![Requirements Status](https://requires.io/github/arachnys/cabot/requirements.svg?branch=master)](https://requires.io/github/arachnys/cabot/requirements/?branch=master)
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
 [![Gitter](https://img.shields.io/gitter/room/arachnys/cabot.svg)](https://gitter.im/arachnys/cabot)
 
+## Maintainers wanted
+
+**Cabot is stable and used by hundreds of companies and individuals in production, but it is not actively maintained. We would like to hand over maintenance of the project to one or more responsible and experienced maintainers. Please email [email protected] with some information about yourself (github profile and/or CV) if you are interested.**
+
+## Why choose Cabot
+
 Cabot is a free, open-source, self-hosted infrastructure monitoring platform that provides some of the best features of [PagerDuty](http://www.pagerduty.com), [Server Density](http://www.serverdensity.com), [Pingdom](http://www.pingdom.com) and [Nagios](http://www.nagios.org) without their cost and complexity. (Nagios, I'm mainly looking at you.)
 
 It provides a web interface that allows you to monitor services (e.g. "Stage Redis server", "Production ElasticSearch cluster") and send telephone, sms or hipchat/email alerts to your on-duty team if those services start misbehaving or go down - all without writing a line of code. Best of all, you can use data that you're already pushing to Graphite/statsd to generate alerts, rather than implementing and maintaining a whole new system of data collectors.