What would you like to be added:

I would like to have a complete replacement example for VPA CRM configuration here instead of a simple example defining how to create vpa annotation metrics when most useful metrics (basically any of the resource) are complex to define for people starting out with CRM

Why is this needed:

Current documentation is not really usable. It more or less feels like users have to do the replacement themselves, are forced to learn how CRM works and dig into the code of KSM when a sufficient documentation could help users get started faster.

Describe the solution you'd like

Have a full example of a crm config to have the same vpa metrics as before.
Some metrics might change (because the VPA collected does some calculation to change the unit that is currently not supported by CRM) but at least having the same information (labelset and values) would help people upgrade to 2.9.0.

Additional context
Coming from this #1718 (comment)