From 0976bb3c90ab04adeaf9e3ea0437ce91284ba434 Mon Sep 17 00:00:00 2001
From: Who? Me?! <mark-i-m@users.noreply.github.com>
Date: Sun, 4 Feb 2018 16:11:19 -0600
Subject: [PATCH] Update README.md

---
 src/doc/rustc-dev-guide/README.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/doc/rustc-dev-guide/README.md b/src/doc/rustc-dev-guide/README.md
index 352c4ce0ba5a..7e468fbb0db9 100644
--- a/src/doc/rustc-dev-guide/README.md
+++ b/src/doc/rustc-dev-guide/README.md
@@ -33,3 +33,5 @@ be found.
 ```
 $ cargo install mdbook-linkcheck
 ```
+You will need `mdbook` version `>= 0.1`. `linkcheck` will be run automatically
+when you run `mdbook build`.