[DOC] - Update advanced-settings discussion in Getting Started

[kcpevey]

Preliminary Checks

• This issue is not a question, feature request, RFC, or anything other than a bug report. Please post those things in GitHub Discussions: https://github.com/nebari-dev/nebari/discussions

Summary

Original comment/source

This installation guide provides the basic needs to install and deploy Nebari for the first time and assumes the user is already familiar with the Conda and Python packaging ecosystems. If you are already familiar to Nebari and would like to check the advance configuration, feel free to skip to "advanced-settings" section.

Steps to Resolve this Issue

add some docs

[viniciusdc]

This is currently blocked until #115 is merged (or we have an advanced-settings page to link to)