From 8ecce74d3301c75afc611cf145b547def27d7c19 Mon Sep 17 00:00:00 2001
From: "Zaiming (Stone) Shi" <zmstone@gmail.com>
Date: Mon, 22 Mar 2021 19:09:39 +0100
Subject: [PATCH] docs(lib-extra/README): Add EMQX_EXTRA_PLUGINS

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

diff --git a/lib-extra/README.md b/lib-extra/README.md
index 5247029ab..a2fae3a17 100644
--- a/lib-extra/README.md
+++ b/lib-extra/README.md
@@ -22,6 +22,7 @@ e.g. For an Erlang plugin named `plugin_foo`:
 ## Build a release
 
 ```
+$ export EMQX_EXTRA_PLUGINS=plugin_foo,plugin_bar
 $ make
 ```