[DOCS] Review Security Docs - Security WG

Description

Security documentation is fragmented, difficult to use and out of date.
We've agreed within the Security Working Group to undertake a review to:

• Find and document the location of existing security related docs
• Assess those docs to see if they should be updated/removed/consolidated
• Make the required changes
• Co-ordinate with the Docs WG to work out the best location for those docs and how to make them more easily discoverable

Suggested Fix

• Find existing docs and document their location this issue
• Review them
• Decide on required action for each doc

Additional context

• Running the Salt Master/Minon as an Unprivileged user - not updated for 3006.0 (or for some time before that)
• Hardening Salt - lots of info, not all of it good, written in a difficult to follow and not easily actionable way
• Salt User Guide - Security page - more up to date, but repeats qute a bit of info from the hardening guide without much detail or actionable info
• Security docs issues:
  • #62820
  • #57158
  • #62144

Start by inventorying the security documentation linked in the issue, including nonroot.html, hardening.html, and the Salt User Guide security page, then read issues #62820, #57158, and #62144. Done means documenting each location, assessing whether it should be updated, removed, or consolidated, and recording the required actions and proposed organization with the Docs WG.