Updated readme.txt with numbers

git-svn-id: https://plugins.svn.wordpress.org/better-font-awesome/trunk@887958 b8457f37-d9ea-0310-8a92-e5e31aec5664
Updated readme.txt with numbers.

git-svn-id: https://plugins.svn.wordpress.org/better-font-awesome/trunk@887959 b8457f37-d9ea-0310-8a92-e5e31aec5664