code: protected StringBuilder generateFooterHtml(int executedQueries, long serverTime) {
          return new StringBuilder().
                  append("<data id=\"sniffy\" data-sql-queries=\"").
                  append(executedQueries).
                  append("\" data-server-time=\"").
                  append(serverTime)
                  .append("\"/>");
      }
docs: Generates following HTML snippet
  <pre>
  {@code
  <data id="sniffy" data-sql-queries="5"/>
  }
  </pre>
  @param executedQueries number of executed queries
  @return StringBuilder with generated HTML