Adjust some figures and phrasing.

wiki/src/blueprint/hardware_for_automated_tests_take2.mdwn

@@ -14,14 +14,14 @@ As a reminder, we are discussing in [[!tails_ticket 10396]] that one
 isotester means:
 
  * 20G RAM
- * 25-30G HDD (10G system+data, 15-20G tmp)
- * 3 CPUs (+1 for the qemu process on the host)
+ * 25G HDD (10G system+data, 15G tmp)
+ * 3 CPU cores (+1 for the qemu process on the host)
 
 So 8 isotesters would mean:
 
  * 160G RAM
- * 200-240G HDD
- * 32 CPUs max
+ * 200G HDD
+ * 32 CPU cores max
 
 From there, it seems unlikely we could host that on Lizard, and we are
 back on the research about new hardware for isotesters.