fix: return latest N months in getMonthlyHistory (#6)

src/models/player.js

@@ -205,12 +205,12 @@ function getMonthlyHistory(pdgaNumber, months = 12) {
              WHERE player_id = ?
              GROUP BY strftime('%Y-%m', date)
            )
-         ORDER BY date ASC
+         ORDER BY date DESC
          LIMIT ?`,
         [player.id, player.id, months],
         (err, rows) => {
           if (err) return reject(err);
-          resolve(rows.map(r => r.rating));
+          resolve(rows.map(r => r.rating).reverse());
         }
       );
     });