Add todo section

README.md

@@ -73,4 +73,10 @@ when it shuts down, and might overwrite your changes.
 ## I need help!
 
 You can contact me at [my Mastodon account](https://chat.noelle.codes/@noelle) and
-I'll do my best to help you out. :)
+I'll do my best to help you out. :)
+
+## TODO
+
+* On startup, make Pingbot get permission from all accounts it wants to notify (and store that permission so it doesn't ask multiple times)
+* Make Pingbot optionally not respond to replies from accounts in its notify list
+* Internationalization