Add Newsbeuter logo to README
Add Newsbeuter logo to README

Original blog post announcing the logo:
https://newsbeuter.wordpress.com/2008/04/05/newsbeuter-now-has-an-official-logo/

x4121/newsbeuter,der-lyse/newsboat,newsboat/newsboat,newsboat/newsboat,newsboat/newsboat,der-lyse/newsboat,der-lyse/newsboat,x4121/newsbeuter,newsboat/newsboat,newsboat/newsboat,der-lyse/newsboat,der-lyse/newsboat,der-lyse/newsboat,newsboat/newsboat,x4121/newsbeuter,der-lyse/newsboat,newsboat/newsboat,x4121/newsbeuter,newsboat/newsboat,der-lyse/newsboat