code: public Href path(final Object suffix) {
          return new Href(
              URI.create(
                  new StringBuilder(
                      Href.TRAILING_SLASH.matcher(this.uri.toString())
                          .replaceAll("")
                  )
                  .append('/')
                  .append(Href.encode(suffix.toString())).toString()
              ),
              this.params,
              this.fragment
          );
      }
docs: Add this path to the URI.
  @param suffix The suffix
  @return New HREF