Typo

git-svn-id: https://plugins.svn.wordpress.org/polymer-components/trunk@1027351 b8457f37-d9ea-0310-8a92-e5e31aec5664
Readme improved

git-svn-id: https://plugins.svn.wordpress.org/polymer-components/trunk@1027355 b8457f37-d9ea-0310-8a92-e5e31aec5664