Add info about reminders permissions

I figured out how to get permission in vs code or other non terminal.app terminals to my apple reminders, so drop that into README.

Figured out from keith/reminders-cli#68 (comment)

README.md

@@ -2,9 +2,13 @@ Forked from [Dan Catt's Kitty](https://github.com/revdancatt/basic-kitty-journal
 
 The code is open, but I have not put any effort into making it reusable. This is coding in the open, not open source. Feel free to read through, but I don't reccomend using it.
 
-Setup:
+## Setup
 
 ```
 bundle
 brew install keith/formulae/reminders-cli
 ```
+
+If you get error around reminders permissions, run:
+
+`osascript -e 'tell application "Reminders" to show (first list whose name is "To do")'`