Fixed a typo

Minesweeper/MainWindow.cpp

@@ -393,13 +393,13 @@ MainWindow::MainWindow()
 	m_howToPlayText.setString(
 		"The board has divided into cells based\n"
 		"on difficulty. The mines are randomly\n"
-		"distrubuted after your first click.\n"
-		"The numbers show how many mines around\n"
-		"them. With that in mind, you can right\n"
-		"click and flag a cell if you thing that\n"
-		"cell contains a mine. To win you need\n"
-		"to open all cells that doesn't contain\n"
-		"a mine.\n\n\n\n"
+		"distributed after your first click.\n"
+		"The numbers show how many mines placed\n"
+		"around them. With that in mind, you can\n"
+		"right click and flag a cell if you thing\n"
+		"that cell contains a mine. To win you\n"
+		"need to open all cells that doesn't\n"
+		"contain a mine.\n\n\n\n"
 		"Easy: 8x8 board, contains 10 mines\n"
 		"Normal: 16x16 board, contains 40 mines\n"
 		"Hard: 32x16 board, contains 99 mines\n"