Update advanced-configuration.md
What does this MR do?
This MR adds a clearer description and an example of the amount of cpus you can add to a docker runner.
Why was this MR needed?
The type for the cpu limitation is unclear and should be clarified.
Are there points in the code the reviewer needs to double check?
No
Does this MR meet the acceptance criteria?
- [ X ] Documentation created/updated
- [ - ] Added tests for this feature/bug
- [ - ] In case of conflicts with
master
- branch was rebased
What are the relevant issue numbers?
None