snake4scores: add page (#4896)

pages/linux/snake4scores.md

@@ -0,0 +1,8 @@
+# snake4scores
+
+> Show the high scores from the snake4 game.
+> More information: <https://manpages.debian.org/snake4/snake4.6.en.html>.
+
+- Show the highscores:
+
+`snake4scores`