Fix stretched example window (#93)

Example is stretched causing a distorted look. Changed html5 project settings to match other examples.

material/custom_sprite/game.project

@@ -11,12 +11,15 @@ shared_state = 1
 [display]
 width = 720
 height = 720
+high_dpi = 1
 
 [android]
 input_method = HiddenInputField
 
 [html5]
-scale_mode = stretch
+scale_mode = no_scale
+show_fullscreen_button = 0
+show_made_with_defold = 0
 
 [project]
 title = custom_sprite_shader