Refactor documentation with a reference section

The current official documentation gets very deep in structure and hard to navigate. I would propose a structure where we list repeating reference style content in a dedicated section. For example moving the following topics into a reference section:

  • Collectors in used in our data collection (SNMP, JDBC, WMI, WS-Man, etc.)
  • Monitors used in Poller
  • Notification strategies used in Notifd