add hack disclaimer

test/tmuxomatic.sh

@@ -75,6 +75,11 @@ function tmuxomatic__expect() {
   fi
 }
 
+# TODO ideally specs shouldn't have any sleeps, but life is hard! Since
+# circle-ci machine is kind of slow, sleeps need to be longer there.
+#
+# Ideally tmuxomatic__exec should now when a command has finished by using
+# "tmux wait", or alert-silence hook, or some tmux sorcery like that.
 function tmuxomatic__sleep() {
   if [[ -z $CI ]]; then
     sleep "$1"