Migrate detailed help/examples/tips from Solr CLI -h output to Ref Guide

Many of our CLI tools have detailed docs about how to use them when you invoke them iwth a -h. In parallel we have docs in the Ref Guide. Let's migrate the detailed docs from the CLI -h invoked option to the ref guide. Maybe think about how we can point a user to the correct Ref Guide page if they do a -h?

This will reduce the duplication, where errors creep in, and reduce the amount of custom java code.