Verson 1.4, Default property "param_apm_prefix" is now empty by defau…

…lt because you can't remove it with empty value but easily add no empty value e.g: -Jparam_apm_prefix=TR_

README.md

@@ -5,6 +5,9 @@
   <p align="center"><a href="https://github.com/vdaburon/jmeter-elastic-apm">Link to github project jmeter-elastic-apm</a></p>
 </p>
 
+An article "Why and How To Integrate Elastic APM in Apache JMeter" about this plugin and some advices: <br/>
+https://dzone.com/articles/integrating-elastic-apm-in-apache-jmeter
+
 # Apache JMeter with integration of ElasticSearch Application Performance Monitoring
 This tool manages the integration of ElasticSearch Application Performance Monitoring API in the Apache JMeter.