Mention ironic-inspector in plugin-registry docs

Change-Id: Ia508a3af5a65e4fbf34dd8b9ae537ca133358fa3
diff --git a/doc/source/plugin-registry.rst b/doc/source/plugin-registry.rst
index bbab56b..0feaafb 100644
--- a/doc/source/plugin-registry.rst
+++ b/doc/source/plugin-registry.rst
@@ -72,14 +72,16 @@
 Additional Services
 ===================
 
-+-------------+------------------------------------------+------------+
-| Plugin Name | URL                                      | Comments   |
-|             |                                          |            |
-+-------------+------------------------------------------+------------+
-|ec2-api      |git://git.openstack.org/stackforge/ec2api |[as1]_      |
-+-------------+------------------------------------------+------------+
-|             |                                          |            |
-+-------------+------------------------------------------+------------+
++----------------+--------------------------------------------------+------------+
+| Plugin Name    | URL                                              | Comments   |
+|                |                                                  |            |
++----------------+--------------------------------------------------+------------+
+|ec2-api         |git://git.openstack.org/stackforge/ec2api         |[as1]_      |
++----------------+--------------------------------------------------+------------+
+|ironic-inspector|git://git.openstack.org/openstack/ironic-inspector|            |
++----------------+--------------------------------------------------+------------+
+|                |                                                  |            |
++----------------+--------------------------------------------------+------------+
 
 .. [as1] first functional devstack plugin, hence why used in most of
          the examples.