Update Berry.md - Button events

Link to sample code for these not very obvious calls.

Author: sfromis

docs/Berry.md

@@ -390,12 +390,13 @@ Driver methods are called with the following parameters: `f(cmd, idx, payload, r
 - `web_add_button()`: (deprecated) synonym of `web_add_console_button()`
 - `web_add_main_button()`, `web_add_management_button()`, `web_add_console_button()`, `web_add_config_button()`: add a button to Tasmota's Web UI on a specific page
 - `web_add_handler()`: called when Tasmota web server started, and the right time to call `webserver.on()` to add handlers
-- `button_pressed()`: called when a button is pressed
 - `save_before_restart()`: called just before a restart
 - `mqtt_data(topic, idx, data, databytes)`: called for MQTT payloads matching `mqtt.subscribe`. `idx` is zero, and `data` is normally unparsed JSON.
 - `set_power_handler(cmd, idx)`: called whenever a Power command is made. `idx` is a combined index value, with one bit per relay or light currently on. `cmd` can be ignored.
-- `any_key(cmd, idx)`: called when an interaction with Button or Switch occurs. `idx` is encoded as follows: `device_save << 24 | key << 16 | state << 8 | device`
 - `display()`: called by display driver with the following subtypes: `init_driver`, `model`, `dim`, `power`.
+- `button_pressed(cmd, idx)`: called when a button is pressed. See [sample code]([url](https://github.com/arendst/Tasmota/pull/21711#issuecomment-2198649833)).
+- `button_multi_pressed(cmd, idx)`: called for button multi-press. See [sample code]([url](https://github.com/arendst/Tasmota/pull/21711#issuecomment-2198649833)).
+- `any_key(cmd, idx)`: called when an interaction with Button or Switch occurs. `idx` is encoded as follows: `device_save << 24 | key << 16 | state << 8 | device`<br> See [sample code]([url](https://github.com/arendst/Tasmota/pull/21711#issuecomment-2198649833)).
 
 Then register the driver with `tasmota.add_driver(<driver>)`.