Revise release notes for 17.0 release

Change-Id: I2799fb1634747cde451a787c567711dcdad2d688

releasenotes/notes/add-kernel-param-config-ilo-9b2cee8b0447f82e.yaml

@@ -1,9 +1,10 @@
 ---
 features:
   - |
-    Adding a new config parameter ``[ilo]/kernel_append_param `` to
+    Adds support for passing a ``kernel_append_param`` setting to the
-    ``ilo-virtual-media`` and ``ilo-uefi-https`` boot interfaces of
+    ``ilo-virtual-media`` and ``ilo-uefi-https`` boot interfaces using
-    ``ilo`` and ``ilo5`` hardware types.
+    the configuration parameter ``[ilo]/kernel_append_param``
+    with the ``ilo`` and ``ilo5`` hardware types.
 upgrade:
   - |
     The ``ilo-virtual-media`` and ``ilo-uefi-https`` boot interfaces does

releasenotes/notes/instance-info-interface-override-287c7fcff1081469.yaml

@@ -1,5 +1,7 @@
 ---
 features:
   - |
-    Allows node _interface values to be overridden by values in instance_info.
+    Allows node ``*_interface`` values to be overridden by values in
-    This gives non-admins a temporary method of setting interface values.
+    a node ``instance_info`` field.
+    This gives non-administrative users a temporary method of setting
+    interface values.

releasenotes/notes/system-scoped-authentication-28e3651de250bea8.yaml

@@ -1,7 +1,7 @@
 ---
 features:
   - |
-    The Baremetal API, provided by the ironic-api process, now supports use of
+    The Baremetal API, provided by the ``ironic-api`` process, now supports use of
     ``system`` scoped ``keystone`` authentication for the following endpoints:
     nodes, ports, portgroups, chassis, drivers, driver vendor passthru,
     volume targets, volume connectors, conductors, allocations, events,