book: Clarify target notice
@@ -53,9 +53,10 @@ $ cargo run --example init
{{#include ../../../../ci/expected/init.run}}
```
-> **NOTE**: Remember to always specify your chosen target device or configure
-> one to be used by default in `.cargo/config.toml`. In this case, we use
-> a Cortex M3 running in QEMU so the target is `thumbv7m-none-eabi`.
+> **NOTE**: Remember to specify your chosen target device by passing a target
+> triple to cargo (e.g `cargo run --example init --target thumbv7m-none-eabi`) or
+> configure a device to be used by default when building the examples in `.cargo/config.toml`.
+> In this case, we use a Cortex M3 emulated in QEMU so the target is `thumbv7m-none-eabi`.
## `idle`
