Adding FAQs to readme

git-svn-id: https://plugins.svn.wordpress.org/flexible-captcha/trunk@833952 b8457f37-d9ea-0310-8a92-e5e31aec5664
Adding FAQAdding FAQs to readme


git-svn-id: https://plugins.svn.wordpress.org/flexible-captcha/trunk@833953 b8457f37-d9ea-0310-8a92-e5e31aec5664