From 75bf1a1525e860418b617b6440255fddd2eed205 Mon Sep 17 00:00:00 2001
From: Illia Volochii <illia.volochii@gmail.com>
Date: Thu, 26 Apr 2018 21:10:44 +0300
Subject: Fix providing multiple values via environment variables

---
 README.md | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'README.md')

diff --git a/README.md b/README.md
index e8b62a4..362f455 100644
--- a/README.md
+++ b/README.md
@@ -94,6 +94,22 @@ $ NUM_WORKERS=4 ./example
 Workers: 4
 ```
 
+You should use a JSON array of strings (value will be converted if
+necessary) in the case of multiple values:
+
+```go
+var args struct {
+    Workers []int `arg:"env"`
+}
+arg.MustParse(&args)
+fmt.Println("Workers:", args.Workers)
+```
+
+```
+$ WORKERS='["1", "99"]' ./example
+Workers: [1 99]
+```
+
 ### Usage strings
 ```go
 var args struct {
-- 
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