From 21ba97c1b7df9909bffa36b573fb3451338cdf10 Mon Sep 17 00:00:00 2001
From: Alec Thomas <alec@swapoff.org>
Date: Fri, 4 Oct 2013 10:48:13 -0400
Subject: Document dependency helper.

---
 README.md | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/README.md b/README.md
index 23f76e3..f5d8ecb 100644
--- a/README.md
+++ b/README.md
@@ -127,6 +127,18 @@ if (position) {
 }
 ```
 
+#### Component dependencies
+
+In the case where a component has dependencies on other components, a helper class exists that will automatically create these dependencies.
+
+eg. The following will also add `Position` and `Direction` components when a `Physics` component is added to an entity.
+
+```c++
+#include "entityx/deps/Dependency.h"
+
+system_manager->add<entityx::deps::Depdendency<Physics, Position, Direction>>();
+```
+
 #### Implementation notes
 
 - Components must provide a no-argument constructor.
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