Create index.txt
diff --git a/erpnext/docs/user/manual/de/selling/index.txt b/erpnext/docs/user/manual/de/selling/index.txt
new file mode 100644
index 0000000..3f414d1
--- /dev/null
+++ b/erpnext/docs/user/manual/de/selling/index.txt
@@ -0,0 +1,4 @@
+quotation
+sales-order
+setup
+articles