[DOC] Update OOM User Guide chapter title

Since the Honolulu release Helm v3 is the only supported version
so it should no longer be documented as experimental. Updating the
chapter title for disambiguation.

Change-Id: I0c9ec2ac801ce8479549b096e8c3671b44b21f53
Issue-ID: OOM-1
Signed-off-by: Bartek Grzybowski <b.grzybowski@partner.samsung.com>
diff --git a/docs/oom_user_guide.rst b/docs/oom_user_guide.rst
index 2059251..e0cf17c 100644
--- a/docs/oom_user_guide.rst
+++ b/docs/oom_user_guide.rst
@@ -15,8 +15,8 @@
 .. _Kubernetes LoadBalancer: https://kubernetes.io/docs/concepts/services-networking/service/#loadbalancer
 .. _user-guide-label:
 
-OOM User Guide helm3 (experimental)
-###################################
+OOM User Guide
+##############
 
 The ONAP Operations Manager (OOM) provide the ability to manage the entire
 life-cycle of an ONAP installation, from the initial deployment to final