dragonfly-operator-system: Update README

dragonfly-operator-system/README.md

@@ -1,16 +1,21 @@
 # Dragonfly Operator
 
-Dragonfly operator is the preferred way to add Redis support to your application.
+Dragonfly operator is the preferred way to add Redis support to your application
+as it is modern Go rewrite and it supports high availability.
 
-Following alternatives were considered:
+Following alternatives were considered, but are discouraged:
 
+* Vanilla Redis without replication is unusable during pod reschedule or Kubernetes worker outage
 * Vanilla Redis' replication is clunky and there is no reliable operator for Kubernetes
   to use vanilla redis
 * KeyDB Cluster was unable to guarantee strong consistency
 
 # For users
 
-For examples refer to [../passmower/dragonfly.yaml]
+Refer to [official documentation on usage](https://www.dragonflydb.io/docs/getting-started/kubernetes-operator#create-a-dragonfly-instance-with-replicas)
+
+For example deployment see
+[here](https://git.k-space.ee/k-space/kube/src/branch/master/passmower/dragonfly.yaml)
 
 Use storage class `redis` for persistent instances.
 To achieve high availabilllity use 2+ replicas with correctly configured
@@ -23,3 +28,7 @@ The operator was deployed with following snippet:
 ```
 kubectl apply -f https://raw.githubusercontent.com/dragonflydb/dragonfly-operator/v1.1.6/manifests/dragonfly-operator.yaml
 ```
+
+To upgrade refer to 
+[github.com/dragonflydb/dragonfly-operator](https://github.com/dragonflydb/dragonfly-operator/releases),
+bump version and reapply