Update readme.txt

git-svn-id: https://plugins.svn.wordpress.org/gigya-socialize-for-wordpress/trunk@934365 b8457f37-d9ea-0310-8a92-e5e31aec5664
Update readme.txt

git-svn-id: https://plugins.svn.wordpress.org/gigya-socialize-for-wordpress/trunk@934366 b8457f37-d9ea-0310-8a92-e5e31aec5664
readme formating

git-svn-id: https://plugins.svn.wordpress.org/gigya-socialize-for-wordpress/trunk@934367 b8457f37-d9ea-0310-8a92-e5e31aec5664