Fix some Markdown formatting issues

Address miscellaneous issues with Markdown formatting in comments which
are consumed by shocco when generating the online documentation.

Change-Id: I953075cdbddbf1f119c6c7e35f039e2e54b79078
diff --git a/lib/nova_plugins/hypervisor-docker b/lib/nova_plugins/hypervisor-docker
index 427554b..300522f 100644
--- a/lib/nova_plugins/hypervisor-docker
+++ b/lib/nova_plugins/hypervisor-docker
@@ -2,11 +2,13 @@
 # Configure the Docker hypervisor
 
 # Enable with:
-# VIRT_DRIVER=docker
+#
+#   VIRT_DRIVER=docker
 
 # Dependencies:
-# ``functions`` file
-# ``nova`` and ``glance`` configurations
+#
+# - ``functions`` file
+# - ``nova`` and ``glance`` configurations
 
 # install_nova_hypervisor - install any external requirements
 # configure_nova_hypervisor - make configuration changes, including those to other services