integration: fix typo

Descriptions in autoscaling yaml talk about three servers
when only two are used.

This change fixes that.

Change-Id: Iac981b51fb3e380aa0a0a7971f5bb4fe83708530
1 file changed
tree: 1620c1a8d18281ae02a4733bd072a37a4a4e3d46
  1. ceilometer/