fix(docs): update connection command in NOTES.txt for ClickHouse client (#88)

Author: Elmo33

charts/clickhouse/templates/NOTES.txt

@@ -22,7 +22,7 @@ Your ClickHouseInstallation resource has been created.
 Once the cluster is available you can connect with:
 
   kubectl -n {{ .Release.Namespace }} exec -it \
-    chi-{{ include "clickhouse.clustername" . }}-clickhouse-{{ include "clickhouse.clustername" . }}-0-0-0 \
+    chi-{{ include "clickhouse.fullname" . }}-{{ include "clickhouse.clustername" . }}-0-0-0 \
     clickhouse-client
 
 Or if you'd like to connect a client you can use port forwarding: