install: README: add Minikube entry

Add Minikube to the list of 'cloud' providers installation instructions.
Whilst there, order the list alphabetically.

Signed-off-by: Graham Whaley <[email protected]>

Author: Graham Whaley

install/README.md

@@ -95,8 +95,9 @@ Manual installation instructions are available for [these distributions](#suppor
 
 ## Installing on a Cloud Service Platform
 * [Amazon Web Services (AWS)](aws-installation-guide.md)
-* [Microsoft Azure](azure-installation-guide.md)
 * [Google Compute Engine (GCE)](gce-installation-guide.md)
+* [Microsoft Azure](azure-installation-guide.md)
+* [Minikube](minikube-installation-guide.md)
 * [VEXXHOST OpenStack Cloud](vexxhost-installation-guide.md)
 
 ## Further information