adds some todos to README

README.md

@@ -17,3 +17,8 @@ Check out the configuration reference at https://huggingface.co/docs/hub/spaces-
 - onclick events for canvas? we can draw, but can I get coordinates?
 - checkboxes seem a bit busted with indexes
 - set canvas default to segmentation output, make small edits rather than doing whole thing
+
+### ToDos:
+- [ ] inverse mask
+- [ ] click support
+- [ ] draw on mask