From 4d83a5af783fb9c9c2b1c697a645fcb85439fb83 Mon Sep 17 00:00:00 2001
From: Alexandre Dulaunoy <a@foo.be>
Date: Mon, 31 Jul 2017 17:00:08 +0200
Subject: [PATCH] Add gitbook reference

---
 BUILD.md | 6 ++++++
 1 file changed, 6 insertions(+)
 create mode 100644 BUILD.md

diff --git a/BUILD.md b/BUILD.md
new file mode 100644
index 0000000..1f81a50
--- /dev/null
+++ b/BUILD.md
@@ -0,0 +1,6 @@
+This book is generated using [gitbook](https://github.com/GitbookIO/gitbook).
+
+== How to build the PDF?
+
+When gitbook is installed, `gitbook pdf` will generate the PDF of the book.
+