Description

Should be documented at https://docs.mongodb.com/manual/reference/command/replSetReconfig/index.html and https://docs.mongodb.com/manual/reference/method/rs.reconfig/#rs.reconfig

Scope of changes

• Work with security team to understand privilege actions required for replSetReconfig / rs.reconfig
• Which, if any, built-in roles provide the required privileges
• Document under an Access Control section with examples of creating a user w/ the appropriate credentials