Split TODO apart. (To make it a place where the wild dreams go...)

README.md

 ##Example##
 
 See [examples/fridge_ops.md](examples/fridge_ops.md).
-
-##TODO##
-
-* define keyboard shortcuts (not the ugly `<key>Shift</key>+<key>F8</key>)
-* tackle TC dependency issues
-

TODO.md

+##TODO##
+
+* define keyboard shortcuts (not the ugly `<key>Shift</key>+<key>F8</key>)
+* tackle TC dependency issues
+