updated README.md

README.md

@@ -189,6 +189,7 @@ More specific information can be found in the readme page under each respective
 - [Hadoop](http://hadoop.apache.org/) (HDFS + Yarn) - distributed storage and compute cluster by Yahoo, [Cloudera](https://www.cloudera.com/) and [Hortonworks](https://hortonworks.com/) - [readme](https://github.com/HariSekhon/Dockerfiles/blob/master/hadoop/README.md)
 - [HBase](https://hbase.apache.org/) - distributed NoSQL datastore by Facebook (opens HBase shell) - [readme](https://github.com/HariSekhon/Dockerfiles/blob/master/hbase/README.md)
 - [Jenkins Agent](https://www.jenkins.io/) with Docker - Jenkins inbound-agent with docker & docker-compose installed - [readme](https://github.com/HariSekhon/Dockerfiles/blob/master/jenkins-agent-docker/README.md)
+- [Jenkins Agent](https://www.jenkins.io/) with PHP + libs + New Relic - Jenkins inbound-agent with PHP + libs + New Relic installed - [readme](https://github.com/HariSekhon/Dockerfiles/blob/master/jenkins-agent-php/README.md)
 - [Jython](http://www.jython.org/) - Python on Java JVM (useful for Hadoop python utilities using Hadoop's Java API. eg. [DevOps Python Tools](https://github.com/HariSekhon/DevOps-Python-tools))
 - [Kafka](https://kafka.apache.org/) - pub-sub data broker by [LinkedIn](https://www.linkedin.com) and [Confluent](https://www.confluent.io/). Deprecated, see new [Confluent docker images](https://hub.docker.com/u/confluentinc/) instead
 - [Mesos](http://mesos.apache.org/) - datacenter resource manager by [Mesosphere](https://mesosphere.com/) (mostly obsoleted by more free Hortonworks / Hadoop Yarn resource manager)