Add note about strict mode

Fixes #3
sindresorhus · Dec 17, 2016 · 622c284 · 622c284
1 parent 9fdd6db
commit 622c284
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/readme.md b/readme.md
@@ -2,6 +2,8 @@
 
 > Get the path of the caller function
 
+You have to use `'use strict';` in your code for this module to work correctly.
+
 
 ## Install