Readme fix.

git-svn-id: https://plugins.svn.wordpress.org/cleantalk-spam-protect/trunk@845536 b8457f37-d9ea-0310-8a92-e5e31aec5664
Readme fix.

git-svn-id: https://plugins.svn.wordpress.org/cleantalk-spam-protect/trunk@845537 b8457f37-d9ea-0310-8a92-e5e31aec5664