From ccccce9d401791f86bdea5fa6f317770386c8973 Mon Sep 17 00:00:00 2001
From: Ruixiang Du <ruixiang.du@gmail.com>
Date: Tue, 9 Jul 2019 02:54:50 -0400
Subject: [PATCH] updated readme

---
 README.md | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/README.md b/README.md
index 9542dab..6596856 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,16 @@
 
 ## Basic Usage
 
-1. Clone the packages into your catkin workspace and compile
+1. Install dependent ROS packages
+
+    ```
+    $ sudo apt install ros-melodic-controller-manager
+    $ sudo apt install ros-melodic-teleop-twist-keyboard
+    ```
+
+    Change ros-melodic-* in the command to ros-kinetic-* if you're using ROS Kinetic.
+
+2. Clone the packages into your catkin workspace and compile
 
     (the following instructions assume your catkin workspace is at: ~/catkin_ws/src)
 
@@ -20,7 +29,7 @@
     $ catkin_make
     ```
 
-2. Launch ROS nodes
+3. Launch ROS nodes
  
 * Start the base node 
 
@@ -31,4 +40,4 @@
 
     ```
     $ roslaunch scout_bringup scout_teleop_keyboard.launch
-    ```
+    ```
\ No newline at end of file