Update references to README files

Most of the README files have been renamed. Refer to the new names.

1 files changed, 1 insertions, 1 deletions

diff --git a/make_dist b/make_dist
index a2d496a0..8cca6085 100755
--- a/make_dist
+++ b/make_dist
@@ -1,7 +1,7 @@
 #!/usr/bin/env perl
 #
 # This program creates a source distribution of qpdf.  For details,
-# see README.maintainer.
+# see README-maintainer.md.
 #
 
 require 5.008;