specify compatible board

AdinAck · AdinAck · commit ce9ba0db665f · 2023-08-18T20:30:47.000-07:00
diff --git a/examples/serial_echo_irq.rs b/examples/serial_echo_irq.rs
@@ -1,4 +1,5 @@
 //! Interrupt Driven Serial Echo Example
+//! For NUCLEO-F031K6
 
 #![no_main]
 #![no_std]

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,5 @@`
`1`	`1`	`//! Interrupt Driven Serial Echo Example`
	`2`	`+//! For NUCLEO-F031K6`
`2`	`3`
`3`	`4`	`#![no_main]`
`4`	`5`	`#![no_std]`