Cleanup ReST format issues

* ReST doesn't allow monospace in italic sections.
      bash$ grep -R \`\` doc/build/html/ --include "*.html"
* The code-block section "::" needed an empty line before the code,
  otherwise it gets shown in the HTML output.
      bash$ egrep -R "<dt>::" doc/build/html/ --include "*.html"
* Monospaced font incorrectly marked with a single back tick
      bash$ egrep -nR '\w`(\s|[\.,;:])' doc/source/ --include "*.rst"

Change-Id: I66c3f685f33851c3f3f0f859996037fc24930246
diff --git a/doc/source/guides/neutron.rst b/doc/source/guides/neutron.rst
index 5891f68..5e23131 100644
--- a/doc/source/guides/neutron.rst
+++ b/doc/source/guides/neutron.rst
@@ -170,8 +170,8 @@
 **Compute Nodes**
 
 In this example, the nodes that will host guest instances will run
-the `neutron-openvswitch-agent` for network connectivity, as well as
-the compute service `nova-compute`.
+the ``neutron-openvswitch-agent`` for network connectivity, as well as
+the compute service ``nova-compute``.
 
 DevStack Configuration
 ----------------------
@@ -256,16 +256,16 @@
         Q_L3_ENABLED=False
 
 Compute node 2's configuration will be exactly the same, except
-`HOST_IP` will be `10.0.0.4`
+``HOST_IP`` will be ``10.0.0.4``
 
 When DevStack is configured to use provider networking (via
-`Q_USE_PROVIDER_NETWORKING` is True and `Q_L3_ENABLED` is False) -
+``Q_USE_PROVIDER_NETWORKING`` is True and ``Q_L3_ENABLED`` is False) -
 DevStack will automatically add the network interface defined in
-`PUBLIC_INTERFACE` to the `OVS_PHYSICAL_BRIDGE`
+``PUBLIC_INTERFACE`` to the ``OVS_PHYSICAL_BRIDGE``
 
 For example, with the above  configuration, a bridge is
-created, named `br-ex` which is managed by Open vSwitch, and the
-second interface on the compute node, `eth1` is attached to the
+created, named ``br-ex`` which is managed by Open vSwitch, and the
+second interface on the compute node, ``eth1`` is attached to the
 bridge, to forward traffic sent by guest VMs.
 
 Miscellaneous Tips
@@ -307,7 +307,7 @@
 ------------------------------------------------
 
 Extension drivers for the ML2 plugin are set with the variable
-`Q_ML2_PLUGIN_EXT_DRIVERS`, and includes the 'port_security' extension
+``Q_ML2_PLUGIN_EXT_DRIVERS``, and includes the 'port_security' extension
 by default. If you want to remove all the extension drivers (even
-'port_security'), set `Q_ML2_PLUGIN_EXT_DRIVERS` to blank.
+'port_security'), set ``Q_ML2_PLUGIN_EXT_DRIVERS`` to blank.