diff --git a/res/xml/number_row.xml b/res/xml/number_row.xml
index 2320ade..ce20172 100644
--- a/res/xml/number_row.xml
+++ b/res/xml/number_row.xml
@@ -1,3 +1,5 @@
+<!-- See [number_row_no_symbols.xml] for the number row with no symbols. -->
+
 <?xml version="1.0" encoding="utf-8"?>
 <row height="0.75">
     <key key0="1" se="!"/>
@@ -11,3 +13,6 @@
     <key key0="9" sw="("/>
     <key key0="0" sw=")"/>
 </row>
+
+
+