From e249813ad7a5670dd9a1a70d46b72aa02ce4dce0 Mon Sep 17 00:00:00 2001
From: perlindgren <per.lindgren@ltu.se>
Date: Tue, 21 Dec 2021 19:55:05 +0100
Subject: [PATCH] Update preface.md

polish
---
 book/en/src/preface.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/book/en/src/preface.md b/book/en/src/preface.md
index 7ad33e1423..d9dbc04bf8 100644
--- a/book/en/src/preface.md
+++ b/book/en/src/preface.md
@@ -8,7 +8,7 @@
 # Preface
 
 This book contains user level documentation for the Real-Time Interrupt-driven Concurrency
-(RTIC) framework. The API reference available [here](../../api/).
+(RTIC) framework. The API reference is available [here](../../api/).
 
 Formerly known as Real-Time For the Masses.