[COMMON] Bump ONAP version

Use version 9.0.0 for Istanbul
Also update the doc.

Issue-ID: OOM-1
Signed-off-by: Sylvain Desbureaux <sylvain.desbureaux@orange.com>
Change-Id: I03e11799bf487226784c98b04116f005c89d1e70
diff --git a/kubernetes/common/network-name-gen/Chart.yaml b/kubernetes/common/network-name-gen/Chart.yaml
index 173dd33..3f54927 100644
--- a/kubernetes/common/network-name-gen/Chart.yaml
+++ b/kubernetes/common/network-name-gen/Chart.yaml
@@ -1,4 +1,5 @@
 # Copyright (C) 2018  AT&T Intellectual Property.  All rights reserved.

+# Modifications Copyright © 2021 Orange

 #

 # Licensed under the Apache License, Version 2.0 (the "License");

 # you may not use this file except in compliance with the License.

@@ -15,4 +16,4 @@
 apiVersion: v1

 description: Name Generation Micro Service

 name: network-name-gen

-version: 8.0.0

+version: 9.0.0