Update README.md

Added link on README to install scripts on opennms-forge

Author: gallenc

README.md

@@ -40,6 +40,8 @@ Install OpenNMS
 
 For details on installing OpenNMS, see [Install OpenNMS][].
 
+TL;DR - If you just want to set up a simple non-production evaluation of OpenNMS Horizon on Linux, some basic install scripts are available at [opennms-forge/opennms-install](https://github.com/opennms-forge/opennms-install)
+
 Build OpenNMS
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