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/ldap b/lib/ldap
index 2a24ccd..80992a7 100644
--- a/lib/ldap
+++ b/lib/ldap
@@ -2,7 +2,8 @@
 # Functions to control the installation and configuration of **ldap**
 
 # ``lib/keystone`` calls the entry points in this order:
-# install_ldap()
+#
+# - install_ldap()
 
 # Save trace setting
 XTRACE=$(set +o | grep xtrace)
@@ -91,6 +92,7 @@
 # Restore xtrace
 $XTRACE
 
-# Local variables:
-# mode: shell-script
-# End:
+# Tell emacs to use shell-script-mode
+## Local variables:
+## mode: shell-script
+## End: