Update README.md

README.md

@@ -3,3 +3,11 @@ Raycaster engine made in Scratch.
 
 ## What is a raycaster?
 A raycaster is a 2D game but it draw something called "rays" on the 2d map, and then calculates the size of each line and the brightness from a first person distance, making it a 3D game. This is a common tactic used in old games like Wolfenstein 3D (Doom is not a raycaster, btw)
+
+## How do I make a map?
+Make your map inside of the MAP sprite using the vector tools in the costumes tab.
+
+After that, go to the 3D DRAW tab and set the pen color to the color you want the map.
+(comments/notes are in the respective sprites telling you where)
+
+Also, set starting position with PERSON sprite as needed.