Update readme.md

x/readme.md

@@ -41,6 +41,11 @@ Or you can even compile, link, and run in one step:
        
     drawing.cpp     	Demos drawing functions and graphics contexts  
     
+    displaylist         Demos Displayable class and display list technique
+    
+    clipping.cpp        Demos clipping using a mouse controlled clipping
+                        rectangle to reveal a pattern of random lines.
+
 ### Events
 
     eventloop.min.cpp   Demos events by displaying mouse motion events 
@@ -54,8 +59,14 @@ Or you can even compile, link, and run in one step:
     doublebuffer.cpp    Demos double buffering (using same 
     				    demo as animation.cpp)
     				    
-    clipping.cpp        Demos clipping using a mouse controlled clipping
-                        rectangle to reveal a pattern of random lines.
+### Extras (not covered in lecture)
+
+    multiwindow         Opens and draws into two windows 
+                        (see command line usage when running)
+
+
+
+