From f75bdf352bade78c7c827df813103153beaf532c Mon Sep 17 00:00:00 2001
From: Dzmitry Plashchynski <plashchynski@gmail.com>
Date: Thu, 19 Mar 2015 21:12:40 +0200
Subject: [PATCH] Update README.md

---
 README.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/README.md b/README.md
index a8c8008..2c567d8 100644
--- a/README.md
+++ b/README.md
@@ -72,6 +72,8 @@ class TestJob # This is not an Active Job job, but pretty legal Crono job.
 end
 ```
 
+_Please note that crono uses threads, so your code should be thread-safe_
+
 #### Job Schedule
 
 Schedule list is defined in the file `config/cronotab.rb`, that created using `crono:install`. The semantic is pretty straightforward: