Merge 41fe016 into 619e0f7

README.md

@@ -1,5 +1,7 @@
 # Benchee [![Hex Version](https://img.shields.io/hexpm/v/benchee.svg)](https://hex.pm/packages/benchee) [![docs](https://img.shields.io/badge/docs-hexpm-blue.svg)](https://hexdocs.pm/benchee/) [![Build Status Travis/Linux](https://travis-ci.org/bencheeorg/benchee.svg?branch=master)](https://travis-ci.org/bencheeorg/benchee) [![Appveyor/Windows Build status](https://ci.appveyor.com/api/projects/status/egujslxrg405bnr7?svg=true)](https://ci.appveyor.com/project/PragTob/benchee-8e4gw) [![Coverage Status](https://coveralls.io/repos/github/bencheeorg/benchee/badge.svg?branch=master)](https://coveralls.io/github/bencheeorg/benchee?branch=master)
 
+**There is a [known issue regarding measurement accuracy for nanoseconds on MacOS](https://github.com/bencheeorg/benchee/issues/313)**
+
 Library for easy and nice (micro) benchmarking in Elixir. Benchee allows you to compare the performance of different pieces of code at a glance. It is also versatile and extensible, relying only on functions. There are also a bunch of [plugins](#plugins) to draw pretty graphs and more!
 
 benchee runs each of your functions for a given amount of time after an initial warmup, it then measures their run time and optionally memory consumption. It then shows different statistical values like average, standard deviation etc. See [features](#features)