New InfluxDB2 HowTo

I have updated my HowTo install InfluxDB guide to use influxDB 2 on Rocky Linux 8 and added a section for creating an API Token.

The CereusTransporter plugin for Cacti will be updated shortly to support this token-based access to InlfuxDB so you can analyze your Cacti data within InfluxDB. By using this plugin, you can visualize Cacti data using Grafana.