[2219553] KCs should state the maximum number of disks and hot-pluggable disks

Description of problem:
https://access.redhat.com/articles/6994974 does not mention the max number of disks per vm

Version-Release number of selected component (if applicable):
4.13

How reproducible:
always

Steps to Reproduce:
1.
2.
3.

Actual results:
KCS does not mention maximum number of disks and hot-pluggable disks

Expected results:
KCS does mention maximum number of disks and hot-pluggable disks

Additional info: