chore: update suppoorted nuts

README.md

@@ -63,6 +63,8 @@ For a guide to settings up a development environment see [DEVELOPMENT.md](./DEVE
 | [15][15] | Partial multi-path payments (MPP) | :heavy_check_mark: |
 | [16][16] | Animated QR codes | :x: |
 | [17][17] | WebSocket subscriptions  | :heavy_check_mark: |
+| [18][18] | Payment Requests  | :heavy_check_mark: |
+| [19][19] | Cached responses  | :heavy_check_mark: |
 
 
 ## Bindings
@@ -100,3 +102,5 @@ Please see the [development guide](DEVELOPMENT.md).
 [15]: https://github.com/cashubtc/nuts/blob/main/15.md
 [16]: https://github.com/cashubtc/nuts/blob/main/16.md
 [17]: https://github.com/cashubtc/nuts/blob/main/17.md
+[18]: https://github.com/cashubtc/nuts/blob/main/18.md
+[19]: https://github.com/cashubtc/nuts/blob/main/19.md