Update proc_installing-knative-minishift.adoc (#19)

Fix "NOTE" section, so that it is properly rendered.

Author: nebelsprachen

common/proc_installing-knative-minishift.adoc

@@ -8,7 +8,7 @@
 
 Use the script `install-on-minishift.sh`, to install Knative on a Minishift cluster.
 
-Note: `install-on-minishift.sh` is destructive. It destroys the existing `knative` profile and recreates it with a working configuration.
+NOTE: `install-on-minishift.sh` is destructive. It destroys the existing `knative` profile and recreates it with a working configuration.
 
 .Prerequisites
 * You need cluster administrator privileges to install and use Knative on a Minishift cluster.