[Documentation] parts of the getting started guide is confusing

[David-ksturnpike]

General information

the getting started documentation after section 2.6. Upgrading CRC section of the Getting Started Guide, as it is a bit confusing, to a new person looking to start using or implementing containers. I can be available to assist in updating the section.

• OS: Linux
• Hypervisor: KVM
• Did you run crc setup before starting it Yes
• Running CRC on: Laptop + VM

[praveenkumar]

@David-ksturnpike https://github.com/crc-org/crc/blob/main/docs/source/topics/proc_upgrading.adoc here is the doc source, please go ahead and create a PR for confusing part.