diff --git a/.gitmodules b/.gitmodules
index b0af52e..51a36aa 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,6 @@
 [submodule "table.js"]
 	path = table.js
 	url = https://github.com/jsmaniac/table.js
+[submodule "git-js-tutorial"]
+	path = git-js-tutorial
+	url = https://github.com/jsmaniac/git-js-tutorial
diff --git a/git-js-tutorial b/git-js-tutorial
new file mode 160000
index 0000000..c1b0019
--- /dev/null
+++ b/git-js-tutorial
@@ -0,0 +1 @@
+Subproject commit c1b00190e9263bd27d021585b9c0d29cd39e5da6