Bluetooth: Host: Improve documentation of `bt_le_ext_adv_start_param`

This clarifies the documentation of `bt_le_ext_adv_start_param` and
`bt_le_ext_adv_cb.sent`, and links them by via references.

Signed-off-by: Aleksander Wasaznik <aleksander.wasaznik@nordicsemi.no>
1 file changed