readme.txt: woohoo, no changes needed for 3.9

git-svn-id: https://plugins.svn.wordpress.org/wysiwyg-inline-code-command/trunk@898744 b8457f37-d9ea-0310-8a92-e5e31aec5664
readme.txt: small doc updates

git-svn-id: https://plugins.svn.wordpress.org/wysiwyg-inline-code-command/trunk@898746 b8457f37-d9ea-0310-8a92-e5e31aec5664