docs: add galley opening hours

README.md

@@ -2,3 +2,5 @@
 
 Everything related to food on board. Changes to the menu need to be
 approved by the captain. Allergies are not up for discussion.
+
+Opening hours: always. This is a spaceship.

menu.md

@@ -2,11 +2,11 @@
 
 | Day       | Lunch                 | Dinner                     |
 |-----------|-----------------------|----------------------------|
-| Monday    | Tomato soup           | Space noodles, extra spicy |
+| Monday    | Tomato soup           | Space noodles              |
 | Tuesday   | Freeze-dried lasagna  | Vegetable stir fry         |
 | Wednesday | Peanut curry          | Leftover peanut curry      |
 | Thursday  | Lentil stew           | Cheese toast               |
-| Friday    | Fish sticks           | Pizza night                |
+| Friday    | Fish sticks           | Fish sticks (again)        |
 | Saturday  | Whatever is left      | Mystery casserole          |
 | Sunday    | Pancakes              | Roast potatoes             |