better style for the plugin description

git-svn-id: https://plugins.svn.wordpress.org/expresscurate/trunk@1053418 b8457f37-d9ea-0310-8a92-e5e31aec5664
better style for the plugin description

git-svn-id: https://plugins.svn.wordpress.org/expresscurate/trunk@1053422 b8457f37-d9ea-0310-8a92-e5e31aec5664