readme update

git-svn-id: http://plugins.svn.wordpress.org/slickquiz/trunk@849782 b8457f37-d9ea-0310-8a92-e5e31aec5664
fixes readme syntax issue, resolves options page apostrophe escaping bug; closes #25

git-svn-id: http://plugins.svn.wordpress.org/slickquiz/trunk@850246 b8457f37-d9ea-0310-8a92-e5e31aec5664