Added reference to OpsTools-ansible (jdauphant#18)

* Added reference to OpsTools-ansible

cc: @mrunge, @paramite

* A reference to the CentOS SIG OpsTools added

A reference to the CentOS Special Interest Group OpsTools added

* Fix merge fail

README.md

@@ -69,6 +69,7 @@ A collaborative curated list of awesome Ansible resources
 - [ARA: Ansible Run Analysis](https://github.com/openstack/ara) - Records Ansible Playbook runs seamlessly to make them easier to visualize, understand and troubleshoot. It integrates with Ansible wherever you run it.
 - [AWX](https://github.com/ansible/awx) - AWX provides a web-based user interface, REST API, and task engine built on top of Ansible. It is the upstream project for Tower, a commercial derivative of AWX.
 - [Molecule](https://github.com/metacloud/molecule) - Testing of Ansible roles
+- [OpsTools-ansible](https://github.com/centos-opstools/opstools-ansible) - The project opstools-ansible is to use Ansible to configure an environment that provides the support of [OpsTools](https://wiki.centos.org/SpecialInterestGroup/OpsTools), namely centralized logging and analysis, availability monitoring, and performance monitoring.
 - [Phansible](http://phansible.com/) : [Github](https://github.com/phansible/phansible) - Simple generator for Vagrant projects, targeting PHP development environments
 - [Semaphore](https://github.com/ansible-semaphore/semaphore) - Open Source Alternative to Ansible Tower
 - [TD4A](https://github.com/cidrblock/td4a) - Template designer for automation - TD4A is a visual design aid for building and testing jinja2 templates. It will combine data in yaml format with a jinja2 template and render the output.