Improve docs for set_panic_hook

ctru-rs/src/applets/error.rs

@@ -88,12 +88,16 @@ impl PopUp {
     }
 }
 
-/// Sets a custom panic hook that uses the error applet to display panic messages. You can also choose to have the
-/// previously registered panic hook called along with the error applet message, which can be useful if you want
-/// to use input redirection to display panic messages over `3dslink` or `GDB`.
+/// Sets a custom [panic hook](https://doc.rust-lang.org/std/panic/fn.set_hook.html) that uses the error applet to display panic messages.
 ///
-/// If the `Gfx` service is not initialized during a panic, the error applet will not be displayed and the old
+/// You can also choose to have the previously registered panic hook called along with the error applet message, which can be useful
+/// if you want to use output redirection to display panic messages over `3dslink` or `GDB`.
+///
+/// If the [`Gfx`] service is not initialized during a panic, the error applet will not be displayed and the old
 /// panic hook will be called.
+///
+/// You can use [`std::panic::take_hook`](https://doc.rust-lang.org/std/panic/fn.take_hook.html) to unregister the panic hook
+/// set by this function.
 pub fn set_panic_hook(call_old_hook: bool) {
     use crate::services::gfx::GFX_ACTIVE;
     use std::sync::TryLockError;