From ee64d20488970b915796bdb3e86ea8d37de196b0 Mon Sep 17 00:00:00 2001
From: sundyli <543950155@qq.com>
Date: Thu, 29 Jul 2021 13:25:36 +0800
Subject: [PATCH] Add git submodule command to correct the test doc (#223)

---
 README.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/README.md b/README.md
index b958fb47124..d40f2baff16 100644
--- a/README.md
+++ b/README.md
@@ -38,6 +38,7 @@ To not run them, pass `ARROW2_IGNORE_PARQUET` to the tests (the tests will be ma
 ```bash
 git clone git@github.com:jorgecarleitao/arrow2.git
 cd arrow2
+git submodule update --init
 ARROW2_IGNORE_PARQUET= cargo test
 ```