Update runtime files
diff --git a/runtime/doc/indent.txt b/runtime/doc/indent.txt
index a8d59e3..8950fd9 100644
--- a/runtime/doc/indent.txt
+++ b/runtime/doc/indent.txt
@@ -588,8 +588,9 @@
 user manual.
 
 If you want to write your own indent file, it must set the 'indentexpr'
-option.  Setting the 'indentkeys' option is often useful.  See the
-$VIMRUNTIME/indent directory for examples.
+option.  Setting the 'indentkeys' option is often useful.
+See the $VIMRUNTIME/indent/README.txt file for hints.
+See the $VIMRUNTIME/indent directory for examples.
 
 
 REMARKS ABOUT SPECIFIC INDENT FILES ~