Bump minimal required Perl version to 5.36

Change-Id: Idcf6a5e6ea43929af9e2f7f855c9ea6e2075f714
diff --git a/Readme.pod b/Readme.pod
index d679620..fe13a27 100644
--- a/Readme.pod
+++ b/Readme.pod
@@ -82,7 +82,7 @@
 In case everything went well, the C<tei2korapxml> tool will
 be available on your command line immediately.
 
-Minimum requirement for L<KorAP::XML::TEI> is Perl 5.16.
+Minimum requirement for L<KorAP::XML::TEI> is Perl 5.36.
 
 =head1 OPTIONS