[MIG] rental_offday: porting of missing changes after migration from …

…v12 to v14

rental_offday/__manifest__.py

@@ -2,9 +2,39 @@
 
 {
     "name": "Rental Off-Day",
-    "summary": "Manage off-days in rentals on daily basis",
     "version": "14.0.1.0.0",
     "category": "Rental",
+    "summary": "Manage off-days in rentals on daily basis",
+    "usage": """
+The off-days can only be used for products rentable in days.
+
+Create a rentable product and its rental service for daily rentals:
+ * Go to Rentals > Configuration > Settings.
+ * Please activate the checkbox for using 'Product Variants'.
+ * Go to Rentals > Products > Products.
+ * Create a new storable product.
+ * Active the checkbox 'Can be Rented'.
+ * Go to page 'Rental Price'.
+ * Activate the boolean fields for daily rental.
+ * Add a usual price for one day.
+ * Save the product, which creates the related rental service.
+ * Add bulk prices as desired, e.g. one day costs 300 €, 7 days 290 €, 21 days 250 €, and so on.
+ * Adjust its stock in location 'Rental In'.
+
+Create a rental order:
+ * Go to Rentals > Customer > Rental Quotations.
+ * Create a new order and choose the type 'Rental Order'.
+ * Add the rental service as an order line.
+ * Set the quantity to rent out one or several storable rentable products.
+ * Choose start and end date, e.g. for 3 weeks.
+ * On the order line you will see a page 'Off-Days' at the bottom.
+ * Choose the type 'Weekend' in order to create 'Fixed Off-Days'
+   and you get a list with all saturdays and sundays within the rental period.
+ * Add some additional off-days as needed.
+ * The number of off-days reduces the rental quantity
+   and is therefore not included in price calculation.
+ * Confirm the order.
+""",
     "author": "elego Software Solutions GmbH, Odoo Community Association (OCA)",
     "website": "https://github.com/OCA/vertical-rental",
     "depends": [