Comment hello world example

README.md

@@ -6,36 +6,53 @@ SUIT is an immediate mode GUI library.
 
 ## Documentation?
 
-Over at [readthedocs](http://suit.readthedocs.org/en/latest/)
+Over at [readthedocs](http://suit.readthedocs.org/en/latest/).
 
 ## Hello, World!
 
 ```lua
-suit = require 'suit'
+-- suit up
+local suit = require 'suit'
 
+-- storage for text input
 local input = {text = ""}
 
+-- all the UI is defined in love.update or functions that are called from here
 function love.update(dt)
+	-- put the layout origin at position (100,100)
+	-- the layout will grow down and to the right from this point
 	suit.layout.reset(100,100)
 
+	-- put an input widget at the layout origin, with a cell size of 200 by 30 pixels
 	suit.Input(input, suit.layout.row(200,30))
+	
+	-- put a label that displays the text below the first cell
+	-- the cell size is the same as the last one (200x30 px)
+	-- the label text will be aligned to the left
 	suit.Label("Hello, "..input.text, {align = "left"}, suit.layout.row())
 
-	suit.layout.row() -- padding of one cell
+	-- put an empty cell that has the same size as the last cell (200x30 px)
+	suit.layout.row()
+	
+	-- put a button of size 200x30 px in the cell below
+	-- if the button is pressed, quit the game
 	if suit.Button("Close", suit.layout.row()).hit then
 		love.event.quit()
 	end
 end
 
 function love.draw()
+	-- draw the gui
 	suit.core.draw()
 end
 
 function love.textinput(t)
+	-- forward text input to SUIT
 	suit.core.textinput(t)
 end
 
 function love.keypressed(key)
+	-- forward keypresses to SUIT
 	suit.core.keypressed(key)
 end
 ```