fix board file path

config.lua

@@ -1,5 +1,7 @@
 return {
-    board = "/home/reza/p/lua/22.sudoku/boards/veryhard/27.txt",
+    board = {
+        filePath = "boards/040.txt",
+    },
     window = {
         bgColor = "FFFFFF",
         width = nil,

main.lua

@@ -11,7 +11,7 @@ function love.load()
     love.mouse.setGrabbed(false)
     love.keyboard.setKeyRepeat(true)
     math.randomseed(os.time())
-    local board = loadBoard("/home/reza/p/lua/22.sudoku/boards/veryhard/27.txt")
+    local board = loadBoard(config.board.filePath)
     local width, height = love.graphics.getDimensions()
     sudokuCanvas = SudokuCanvas:new(200, 100, height/1.5, config.SudokuCanvas)
     sudokuCanvas:setBoard(board)