qapi: add cross-references to virtio.json

Signed-off-by: John Snow <jsnow@redhat.com>
Message-ID: <20250711054005.60969-17-jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

qapi/virtio.json

@@ -137,7 +137,7 @@
 # @num-vqs: VirtIODevice virtqueue count.  This is the number of
 #     active virtqueues being used by the VirtIODevice.
 #
-# @status: VirtIODevice configuration status (VirtioDeviceStatus)
+# @status: VirtIODevice configuration status (`VirtioDeviceStatus`)
 #
 # @isr: VirtIODevice ISR
 #
@@ -579,7 +579,7 @@
 # .. qmp-example::
 #    :annotated:
 #
-#    Get VirtQueueStatus for virtio-vsock (vhost-vsock running)
+#    Get `VirtQueueStatus` for virtio-vsock (vhost-vsock running)
 #    ::
 #
 #     -> { "execute": "x-query-virtio-queue-status",
@@ -606,7 +606,7 @@
 # .. qmp-example::
 #    :annotated:
 #
-#    Get VirtQueueStatus for virtio-serial (no vhost)
+#    Get `VirtQueueStatus` for virtio-serial (no vhost)
 #    ::
 #
 #     -> { "execute": "x-query-virtio-queue-status",
@@ -818,7 +818,7 @@
 #
 # @index: Index of the element in the queue
 #
-# @descs: List of descriptors (VirtioRingDesc)
+# @descs: List of descriptors (`VirtioRingDesc`)
 #
 # @avail: VRingAvail info
 #