hide feeds when the title starts with !
forgot scope
Merge pull request #58 from gs93/hide_feeds

Hide feeds
add documentation about hidden feeds.
Merge branch 'master' of git://github.com/akrennmair/newsbeuter

* 'master' of git://github.com/akrennmair/newsbeuter:
  add documentation about hidden feeds.
  forgot scope
  hide feeds when the title starts with !