code: @SuppressWarnings("unchecked")
      protected void processTag(Tag tag, StringBuilder target) {
          TagRenderer<Tag> renderer = (TagRenderer<Tag>)tagRenderers.get(tag.kind());
          if ( renderer == null ) {
              renderer = TagRenderer.VERBATIM;
          }
          renderer.render(tag, target, this);
      }
docs: Process a tag.
  
  @param tag      The tag.
  @param target   The target string builder.