Update and rename task3.py to dotted_square.py

Author: aleena-zahra

task3.py renamed to dotted_square.py

@@ -3,7 +3,7 @@
 speed=20
 angle=90
 thing = turtle.Turtle()
-
+#making a dotted square by using a nested loop and penup and pendown functions
 for i in range (4):
     for j in range (5):
         thing.penup()
@@ -12,4 +12,4 @@
         thing.forward(speed)
     thing.left(angle)    
 
-turtle.done()
+turtle.done()