Update readme with task list

readme.md

@@ -3,10 +3,12 @@
 This is a large improvement to shuffle. Most notably, the ability for [masonry](http://masonry.desandro.com) layouts. Other additions include adding/removing items, enabling/disabling, multiple instances on a page, and more!
 
 ## Todos
-* Make demos
-* Solve margin top issue
-* init with a sort
-* Horizontal layout
-* Custom animations
-* Consistent naming of public vs private functions
-* Use Deferred objects for callbacks
+[ ] Button states
+[ ] Make demo with images loaded plugin
+[x] Make compound filters demo
+[ ] Solve margin top issue
+[ ] init with a sort
+[ ] Horizontal layout
+[ ] Custom animations
+[ ] Consistent naming of public vs private functions
+[ ] Use Deferred objects for callbacks