Use inline literal markup for options in releasenotes

This commit makes the releasenotes to use 'inline literal markup[0]
because it would be accurate rendering for commandline
options. Otherwise, dashes are changed into an en/em dash entity. And
this commit also fixes some inline literal markups which I
noticed. Ideally, we should fix like that things in one
patch. However, it's a bit hard to find them all..

[0] http://www.sphinx-doc.org/en/master/usage/restructuredtext/basics.html#roles

Change-Id: I8f7691b3ff40ccde051620f44217dab244d76960

releasenotes/notes/16/16.0.0-add-tempest-run-combine-option-e94c1049ba8985d5.yaml

@@ -1,6 +1,6 @@
 ---
 features:
   - |
-    Adds a new cli option to tempest run, --combine, which is used to indicate
-    you want the subunit stream output combined with the previous run's in
-    the testr repository
+    Adds a new cli option to tempest run, ``--combine``, which is used
+    to indicate you want the subunit stream output combined with the
+    previous run's in the testr repository

releasenotes/notes/16/16.0.0-remove-deprecated-allow_port_security_disabled-option-d0ffaeb2e7817707.yaml

@@ -1,5 +1,5 @@
 ---
 upgrade:
   - |
-    The deprecated config option 'allow_port_security_disabled' from compute_feature_enabled
-    group has been removed.
+    The deprecated config option ``allow_port_security_disabled`` from
+    ``compute_feature_enabled`` group has been removed.

releasenotes/notes/add-load-list-cmd-35a4a2e6ea0a36fd.yaml

@@ -1,7 +1,7 @@
 ---
 features:
   - |
-    Adds a new cli option to tempest run, --load-list <list-file>
+    Adds a new cli option to tempest run, ``--load-list <list-file>``
     to specify target tests to run from a list-file. The list-file
-    supports the output format of the tempest run --list-tests
+    supports the output format of the tempest run ``--list-tests``
     command.

releasenotes/notes/add-save-state-option-5ea67858cbaca969.yaml

@@ -1,4 +1,5 @@
 ---
 features:
   - |
-    Add --save-state option to allow saving state of cloud before tempest run.
+    Add ``--save-state`` option to allow saving state of cloud before
+    tempest run.

releasenotes/notes/cli-tests-v3fixes-fb38189cefd64213.yaml

@@ -2,8 +2,8 @@
 other:
   - |
     The CLIClient class, when it calls a command line client, uses
-    --os-project-name instead of --os-tenant-name for the project, and
-    passes --os-identity-api-version (default empty).
+    ``--os-project-name`` instead of ``--os-tenant-name`` for the
+    project, and passes ``--os-identity-api-version`` (default empty).
     All CLI clients still available in supported releases of OpenStack
-    which are wrapped by the cmd_with_auth() method support those
+    which are wrapped by the ``cmd_with_auth()`` method support those
     switches.

releasenotes/notes/tempest-run-fix-updates-564b41706decbba1.yaml

@@ -1,8 +1,8 @@
 ---
 features:
   - |
-    Adds a new CLI arg in tempest run, --black-regex, which is a regex to
-    exclude the tests that match it.
+    Adds a new CLI arg in tempest run, ``--black-regex``, which is a
+    regex to exclude the tests that match it.
 fixes:
   - |
     Fixes tempest run CLI args mutually exclusive behavior which should not

releasenotes/notes/tempest-workspace-delete-directory-feature-74d6d157a5a05561.yaml

@@ -1,5 +1,5 @@
 ---
 features:
   - |
-    Added tempest workspace remove --name <workspace_name> --rmdir
+    Added tempest workspace remove ``--name <workspace_name> --rmdir``
     feature to delete the workspace directory as well as entry.