Update description of pod life-cycle during deployment

[KucharczykL]

Closes #748.

[KucharczykL]

I wasn't sure what amount of detail was desired so it might needs a bit of trimming. I didn't edit the second part of that entity (pods restarting).

[btat]

Looks good. I think we can comment out/remove the pod restarts one in a subsequent once we confirm it's no longer needed.

Forgot to include this in the original issue description, but can you update the scf-deploy-complete entity as well. It's used to describe how the pods and their status should look when the deployment is successful/complete.

[KucharczykL]

I have updated the description to reflect the current result. I am not sure whether I should replace all instances of scf with kubecf. So far I have only edited the commands and pod names.

[btat]

Thanks for updating the other entity as well. I think it's fine if we leave the scf to kubecf change off this PR. We can make a separate PR to update that in all content.