Fix musicformats showcase

Author: veghdev

docs/showcases/musicformats/data.js

@@ -44,6 +44,7 @@ const data = {
 		['1982', 'Cassette', '3713'],
 		['1982', 'Vinyl', '5922'],
 		['1982', 'CD', '0'],
+		['1983', 'Tapes', '0'],
 		['1983', 'CD', '45'],
 		['1983', 'Cassette', '4706'],
 		['1983', 'Vinyl', '5089'],
@@ -160,6 +161,7 @@ const data = {
 		['2008', 'Other', '1178'],
 		['2008', 'Download', '2054'],
 		['2008', 'CD', '6585'],
+		['2009', 'Cassette', '0'],
 		['2009', 'Vinyl', '80'],
 		['2009', 'DVD', '255'],
 		['2009', 'Streaming', '436'],