document upgraded perl version

Change-Id: I9ee11f6c3547420e6ea9baef0a6202d51ef50f4f
diff --git a/script/korapxml2krill b/script/korapxml2krill
index 2d13c60..4185020 100755
--- a/script/korapxml2krill
+++ b/script/korapxml2krill
@@ -1095,7 +1095,7 @@
 
 In case everything went well, the C<korapxml2krill> tool will
 be available on your command line immediately.
-Minimum requirement for L<KorAP::XML::Krill> is Perl 5.16.
+Minimum requirement for L<KorAP::XML::Krill> is Perl 5.32.
 Optionally installing L<Archive::Tar::Builder> speeds up archive building.
 Optional support for L<Sys::Info> to calculate available cores is available.
 In addition to work with zip archives, the C<unzip> tool needs to be present.