Feedback on Sudoku tutorial chapters 1-6

[bvssvni]

Chapter 1

• Fixed wording

Chapter 2

• Fixed wording

Chapter 3

• Fixed wording

Chapter 4

• "Set up objects and handle like this:" => "Set up objects and handle events:"
• "gameboard_view.draw(&gameboard_controller.gameboard, &c, g);" => "gameboard_view.draw(&gameboard_controller, &c, g);" 2 places

Chapter 5

• "if x >= 0.0 && x <= size && y >= 0.0 && y <= size {" => "if x >= 0.0 && x < size && y >= 0.0 && y < size {" This is a bug. Need to update code. Check the other chapters.

Chapter 6

• "use graphics::character::CharacterCache;" Lack Rust syntax highlighting.
• "import Transformed" => "import the trait Transformed" Add after code "The trait constraint CharacterCache<Texture = G::Texture>" makes sure that the texture type matches the type used by the graphics backend."
• After code for drawing characters, add "let ch_y = pos[1] - character.top(); has a negative sign because the y-axis in font coordinates points upwards while the y-axis in drawing coordinates points downwards."

[bvssvni]

I wonder if we should put line comments // NEW to show where you add code.

Alternative: // <---