docs: def build_recovery_online_url(self, book_name, book_chapter):
          """
          Returns a string composing the url of the online.recoveryversion.bible
          of the given book name and chapter
          TODO: Write notes here about how that URL is composed, and what is expected
          by online.recoveryversion.bible
          """
          base_url = "http://online.recoveryversion.bible/txo"
          return "{}/{}_{}{}.htm".format(
                                  base_url,
                                  self.get_book_number(book_name),
                                  # Spaces are removed to deal with book names
                                  # that include a number. i.e. 1 Corinthians
                                  book_name.replace(" ", ""),
                                  book_chapter)