Clean comments in Jinja workflow to create KSU

Change-Id: I2b6c4e5924b0df0d7f905bff0d2662e8add37f17
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>

osm_lcm/odu_libs/templates/launcher-create-ksu-hr.j2

@@ -71,9 +71,9 @@ spec:
     - name: secret_key
       value: "values.yaml"
     ################################################################
-    # This temporary secret (in the example, `jenkins-credentials`) should exist already
-    # in the `osm-workflows` namespace and contain the desired Jenkins credentials in
-    # a well-known key (in the example, `creds`).
+    # This temporary secret should exist already in the `osm-workflows`
+    # namespace and contain the desired secret values in a well-known key
+    # (in the example, `creds`).
     #
     # For instance:
     #