docs: public static void extractSpecialContent (@Nonnull final IHCNode aNode,
                                              @Nonnull final AbstractHCSpecialNodes <?> aSpecialNodes,
                                              final boolean bKeepOnDocumentReady)
    {
      extractSpecialContent (aNode,
                             aSpecialNodes,
                             bKeepOnDocumentReady ? HCSettings.getOnDocumentReadyProvider () : null);
    }