diff --git a/source/test.md b/source/test.md
new file mode 100644
index 00000000..90bfcb51
--- /dev/null
+++ b/source/test.md
@@ -0,0 +1 @@
+this is a test
diff --git a/source/x.js b/source/x.js
new file mode 100644
index 00000000..72943a16
--- /dev/null
+++ b/source/x.js
@@ -0,0 +1 @@
+aaa