add missing slash in readme
add missing slash in readme

David-Development/news,David-Development/news,owncloud/news,David-Development/news,IBBoard/news,Xefir/news,itstar4tech/news,owncloud/news,itstar4tech/news,IBBoard/news,itstar4tech/news,Xefir/news,IBBoard/news,IBBoard/news,owncloud/news,Xefir/news,David-Development/news,Xefir/news,itstar4tech/news