Readme formatting

git-svn-id: https://plugins.svn.wordpress.org/pwebonedrive/trunk@958725 b8457f37-d9ea-0310-8a92-e5e31aec5664
Readme formatting

git-svn-id: https://plugins.svn.wordpress.org/pwebonedrive/trunk@958726 b8457f37-d9ea-0310-8a92-e5e31aec5664