Update the README to the new way of developing

Author: jlarriba

README.md

@@ -52,10 +52,11 @@ Now, we proceed to run our own telemetry-operator instance:
 oc patch openstackcontrolplane openstack-galera-network-isolation --type='json' -p='[{"op": "replace", "path": "/spec/telemetry/enabled", "value":false}]'
 ```
 
-7.- Remove telemetry-operator from the deployments
+7.- Scale down telemetry-operator and openstack-operator
 ```
-oc project openstack-operators
-oc delete csv telemetry-operator.v0.0.1
+oc patch csv openstack-operator.v0.0.1 --type='json' -p='[{"op": "replace", "path": "/spec/install/spec/deployments/0/spec/replicas", "value":0}]' -n openstack-operators
+
+oc scale deployments/telemetry-operator-controller-manager --replicas 0 -n openstack-operators
 ```
 
 8.- Deploy custom telemetry-operator version
@@ -65,25 +66,24 @@ NOTE: If you intend to deploy a custom telemetry object *with pre-populated imag
 ```
 cd telemetry-operator
 
+# Only needed if API changed
 oc delete -f config/crd/bases/
 oc apply -f config/crd/bases/
 
 make manifests generate
 OPERATOR_TEMPLATES=$PWD/templates make run-with-webhook
 ```
 
-
 9.- Deploy Telemetry
 
-There are two options, either let openstack-operator manage a telemetry object, or disable openstack-operator and manage it yourself.
+There are two options, either use the existing OpenStackControlPlane to manage the telemetry object, or manage it yourself.
 
-9a.- To continue running openstack-operator and use a telemetry object under its control, re-enable telemetry in the oscp:
+9a.- To use the existing OpenStackControlPlane to manage the telemetry object, re-enable telemetry:
 ```
 oc patch openstackcontrolplane openstack-galera-network-isolation --type='json' -p='[{"op": "replace", "path": "/spec/telemetry/enabled", "value":true}]'
 ```
-9b - To disable openstack-operator and use a custom telemetry object
+9b - To use a custom telemetry object
 ```
-oc scale deploy/openstack-operator-controller-manager --replicas=0 -n openstack-operators
 oc apply -f config/samples/telemetry_v1beta1_telemetry.yaml
 ```