add test plan run instructions to README

[kortemik]

Description

instructions for running test plan

Run rlp_07

• Download rlp_07-1.3.0-jar-with-dependencies.jar from https://github.com/teragrep/rlp_07/
• java -jar rlp_07-1.3.0-jar-with-dependencies.jar # opens to localhost:1601

Run cfe_16

• mvn clean package
• sed 's/syslog.server.port=1234/syslog.server.port=1601/g;s/syslog.server.protocol=TCP/syslog.server.protocol=RELP/g' src/main/resources/application.properties.example > target/application.properties
• cd ./target
• java -jar cfe_16.jar

Run jmeter

• Download apache-jmeter-5.6.3
• cd ~/Downloads/apache-jmeter-5.6.3
• bin/jmeter.sh
• load test plan from src/test/resources/cfe-16-test-plan.jmx
• press green play button

Add these to README.adoc