[docs] merged kb and cleanup. warning: don't see the commit
diff --git a/erpnext/docs/user/manual/index.txt b/erpnext/docs/user/manual/index.txt
new file mode 100644
index 0000000..c574d07
--- /dev/null
+++ b/erpnext/docs/user/manual/index.txt
@@ -0,0 +1 @@
+en