Updated description page now there is is stuff in Other Notes tab on wordpress.org

git-svn-id: https://plugins.svn.wordpress.org/random-youtube-video/trunk@987501 b8457f37-d9ea-0310-8a92-e5e31aec5664
Fixed typos in description.

git-svn-id: https://plugins.svn.wordpress.org/random-youtube-video/trunk@987504 b8457f37-d9ea-0310-8a92-e5e31aec5664