Made correction to the slate links

Made correction to the  slate links

userguide/tutorials/catalog-examples.adoc

@@ -692,9 +692,9 @@ The following table lists the actions and their results:
 |Action   |Result   
 //-------------
 |Create a subscription for the `water-monthly` plan on `2021-09-29` (current date)  | Because *IN_ARREAR* billing mode is specified, the system does not generate an invoice (yet).
-| https://killbill.github.io/slate/#usage-record-usage-for-a-subscription[Record a usage] of `400` with date `2021-10-01` | Again, invoice not generated since *IN_ARREAR* billing mode is specified
+| https://killbill.github.io/slate/usage.html#record-usage-for-a-subscription[Record a usage] of `400` with date `2021-10-01` | Again, invoice not generated since *IN_ARREAR* billing mode is specified
 |Trigger invoice dry run with target date `2021-10-29`    |Invoice generated for  `$630` for `2021-09-29` to `2021-10-29`. This is calculated as: `30 + (400 x 1.5) = 630` (Since `400` units are consumed, user is charged `$1.5` per liter as per the first tier)
-| https://killbill.github.io/slate/#usage-record-usage-for-a-subscription[Record a usage] of `1200` with date `2021-11-01`. Trigger invoice dry run with target date `2021-11-29` | Invoice generated for  `$1930` for `2021-10-29` to `2021-11-29`. This is calculated as: `30 + (1000 x 1.5) + (200 X 2.0) = 1930` (Since `1200` units are consumed, the first `1000` units are charged at `$1.5` per liter as per the first tier and the next `200` units are charged at at `$2.0` per liter as per the second tier)
+| https://killbill.github.io/slate/usage.html#record-usage-for-a-subscription[Record a usage] of `1200` with date `2021-11-01`. Trigger invoice dry run with target date `2021-11-29` | Invoice generated for  `$1930` for `2021-10-29` to `2021-11-29`. This is calculated as: `30 + (1000 x 1.5) + (200 X 2.0) = 1930` (Since `1200` units are consumed, the first `1000` units are charged at `$1.5` per liter as per the first tier and the next `200` units are charged at at `$2.0` per liter as per the second tier)
 |===
 
 See https://docs.killbill.io/latest/consumable_in_arrear.html[_Consumable In Arrear Tutorial_] for additional information.