Reorganize Readme (#142)

removing parts of config.

* chaning secret name pattern to make things shorter.

* Move section on self building docker image.

* Fix typo.

* Bump image.

* bump version for pdb fix.

* Changes in regards to review.

* Fix xhyve driver link.

* Move to new api, remove service account, not needed for minikube.

* Changed minimal manifest and example to use right file.

* Added service account for operator again, it is needed in pods anyways later.

manifests/postgres-operator.yaml

@@ -1,4 +1,4 @@
-apiVersion: extensions/v1beta1
+apiVersion: apps/v1beta1
 kind: Deployment
 metadata:
   name: postgres-operator
@@ -12,7 +12,7 @@ spec:
       serviceAccountName: operator
       containers:
       - name: postgres-operator
-        image: pierone.stups.zalan.do/acid/postgres-operator:workerassgn
+        image: registry.opensource.zalan.do/acid/postgres-operator:c17aabb
         imagePullPolicy: IfNotPresent
         env:
         - name: WATCH_NAMESPACE