fix rating in meta description

currently printing object inspection

`<meta content="flugsio played 135 games since Dec 8, 2013. Current Chess960 rating: Perf(1467 79,27,List(1467, 1489, 1474, 1457, 1458, 1438, 1461, 1438, 1412, 1435, 1404, 1398),Some(2014-12-09T00:11:46.501+01:00))." name="description">`