moved description to note

entries/xultris.md

@@ -1,7 +1,5 @@
 # Xultris
 
-_Tetris variant implemented as a Mozilla Firefox extension._
-
 - Home: https://github.com/mackers/xultris, https://web.archive.org/web/20181216030855/http://games.mozdev.org/xultris/
 - State: mature, inactive since 2011
 - Keywords: arcade, tetris-like
@@ -10,6 +8,8 @@ _Tetris variant implemented as a Mozilla Firefox extension._
 - Code license: MPL-1.1
 - Developer: David McNamara, Mike Schuette
 
+Tetris variant implemented as a Mozilla Firefox extension.
+
 ## Building
 
 - Build system: Make