Base: Improve ColorLines manpage

Co-authored-by: spraines <[email protected]>

Base/usr/share/man/man6/ColorLines.md

@@ -12,8 +12,14 @@ $ ColorLines
 
 ## Description
 
-ColorLines is a classic game.
+`Color Lines` is a classic puzzle game played on a 9x9 board.
 
-Click a marble, then click an empty square to move. 
-You can only move along unblocked paths.
-Build rows of 5 or more marbles of the same color to score. 
+Click on a marble, then select an empty square for it to move to. Marbles can only move along unblocked paths.
+
+The goal is to arrange marbles of the same color in vertical, horizontal or diagonal lines. Once a line has five or more marbles it's removed from the board, scoring 2 points for each marble.
+
+The current score is displayed in the top-left and the high score in the top-right.
+
+After each move, three new marbles appear on the board. The game becomes more difficult as the board fills up and the game ends when the board is full.
+
+Press `F2` to start a new game.