diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..28ea5bd
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "doc"]
+	path = doc
+	url = git@github.com:markpercival/rturk.git
diff --git a/.yardoc b/.yardoc
index 951236f..717add6 100644
Binary files a/.yardoc and b/.yardoc differ
diff --git a/doc b/doc
new file mode 160000
index 0000000..61d3833
--- /dev/null
+++ b/doc
@@ -0,0 +1 @@
+Subproject commit 61d38331676492d6eca4594522dc5f455fe99891