From f854410542d35909291fc901ca0def459fdb3990 Mon Sep 17 00:00:00 2001
From: Niels <niels.lohmann@gmail.com>
Date: Wed, 20 Jan 2016 21:20:41 +0100
Subject: [PATCH] added a note wrt. Valgrind (#175)

---
 CONTRIBUTING.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index b258f464..3e6258d4 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -52,6 +52,10 @@ There are currently two files which need to be edited:
 Please understand that I cannot accept pull requests changing only file `src/json.hpp`.
 
 
+## Note
+
+- If you open a pull request, the code will be automatically tested with [Valgrind](http://valgrind.org)'s Memcheck tool to detect memory leaks. Please be aware that the execution with Valgrind _may_ in rare cases yield different behavior than running the code directly. This can result in failing unit tests which run successfully without Valgrind.
+
 ## Please don't
 
 - Only make changes to file `src/json.hpp` -- please read the paragraph above and understand why `src/json.hpp.re2c` exists.