From d48d956a5acfcf4f76cd0eb5d9832ced666d7b0b Mon Sep 17 00:00:00 2001
From: Mehran Poursadeghi <mehr.prs@gmail.com>
Date: Fri, 8 May 2020 14:27:15 +0430
Subject: [PATCH] Update makefile.md

---
 makefile.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/makefile.md b/makefile.md
index 1c457d461..4632c8d6c 100644
--- a/makefile.md
+++ b/makefile.md
@@ -11,6 +11,7 @@ category: CLI
 uglify = $(uglify)        # lazy assignment
 compressor := $(uglify)   # immediate assignment
 prefix ?= /usr/local      # safe assignment
+hello += world                # append
 ```
 
 `=` expressions are only evaluated when they're being used.