Add hardware requirements to GitHub documentation

[dillu24]

User Story

It would be helpful to the user to know the hardware specifications required to run PANIC.

Description

After running PANIC for a while, our infrastracture team concluded that the following specs are needed:

CPU 4 cores
RAM 8GB
Space 100GB

Timo suggested that with database and logs pruning, the space requirements can be reduced to 50GB, but at the moment pruning is not being performed.

Ticket Requirments:

• Research what is the best way to include this piece of documentation. I believe that there are some fancy and nice ways of doing this in markdown.
• We need to add the info above to the GitHub markdown documentation right after the PANIC banner.

For ticket closure (acceptance criteria)

This is a set of rules which the update/feature must satisfy for the ticket to be closed.

Scenario: When the user checks the main GitHub README Then: The hardware specs are visible underneath the PANIC banner