packaging: setup: Fix for typo in setup.

Configurating PostgreSQL and Configurating WebSocket Proxy
have been changed to Configuring PostgreSQL and Configuring
WebSocket Proxy respectively.

Change-Id: I24e2920c24bb2452b58fd355dc59ec76ca784fab
https://bugzilla.redhat.com/show_bug.cgi?id=1031543
Signed-off-by: ndarshan <dnarayan@redhat.com>