Update README.md

chenjie · web-flow · commit 9e2f54df77ed · 2019-06-11T12:57:26.000-04:00
diff --git a/README.md b/README.md
@@ -11,6 +11,7 @@ Are we doomed in the year of 2019? Is it gonna be like The Wandering Earth🌎?
 ## Prerequisites
 
 * Ubuntu 18.04
+* Run as `root` user
 * A cup of Java :)
 
 ## Configs
