From 85248595e3c70e26f4606838ba75e270a6c41e29 Mon Sep 17 00:00:00 2001
From: spacewander <spacewanderlzx@gmail.com>
Date: Thu, 27 Jun 2019 12:33:18 +0800
Subject: [PATCH] Installation.md: add dependencies section.

---
 Installation.md | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/Installation.md b/Installation.md
index 4b060d9..d05b89e 100644
--- a/Installation.md
+++ b/Installation.md
@@ -1,5 +1,14 @@
 # Installing git-extras
 
+## Dependencies
+
+Some commands require extra dependencies which are unavailable in some platforms.
+You may need to install them manually.
+
+Those dependencies are listed below:
+
+* column
+
 ## Installing with a package manager
 
 ### Debian
@@ -84,6 +93,8 @@ Use the instructions to build from source below. Make sure you are using `gmake`
 
 ## Building from source
 
+Read [Dependencies](#dependencies) and ensure they are installed.
+
 Obtain the git-extras source by cloning [its GitHub repo](https://github.com/tj/git-extras.git) or downloading a tarball of a [release](https://github.com/tj/git-extras/releases). Then install it by doing `make install` from the source tree.
 
 ```bash