From d37d5726ce73cdbfe1df4f537998b4b7e0d0df01 Mon Sep 17 00:00:00 2001
From: Michael Mogenson <michael.mogenson@gmail.com>
Date: Wed, 27 Mar 2019 11:37:44 -0400
Subject: [PATCH] write_fmt() method needed for write!() macro

Include `use core::fmt::Write;` in serial example.
---
 src/hello-world/02.00.UART.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/hello-world/02.00.UART.md b/src/hello-world/02.00.UART.md
index b661a02..4b7af7d 100644
--- a/src/hello-world/02.00.UART.md
+++ b/src/hello-world/02.00.UART.md
@@ -24,6 +24,7 @@ To read and write to the serial bus from your computer, you will need to configu
 ## Code
 
 ``` rust
+use core::fmt::Write;
 use microbit::hal::prelude::*;
 use microbit::hal::serial;
 use microbit::hal::serial::BAUD115200;