docs: def list_feeds():
      """List all feeds in plain text and give their aliases"""
      with Database("feeds") as feeds, Database("aliases") as aliases_db:
          for feed in feeds:
              name = feed
              url = feeds[feed]
              aliases = []
              for k, v in zip(list(aliases_db.keys()), list(aliases_db.values())):
                  if v == name:
                      aliases.append(k)
              if aliases:
                  print(name, " : %s Aliases: %s" % (url, aliases))
              else:
                  print(name, " : %s" % url)