From 28d7fbb80a0b116f42879a014fed4a9856ba56f8 Mon Sep 17 00:00:00 2001
From: Tang Li Qun <tliqun@gmail.com>
Date: Mon, 1 Oct 2018 15:26:08 +0900
Subject: [PATCH] Update README.rst

---
 README.rst | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/README.rst b/README.rst
index 7d2edee..d326817 100644
--- a/README.rst
+++ b/README.rst
@@ -9,6 +9,9 @@ Botflow
 * Type- and content-based route function
 * Interactive programming with Jupyter Notebook
 
+Requirements
+------------
+`Graphviz <http://brewformulas.org/Graphviz>`_.
 
 Installing
 ----------