fix LaTeX object in logo

examples/.latexmkrc

@@ -0,0 +1,10 @@
+use strict;
+use warnings;
+use Cwd qw(abs_path);
+use File::Basename qw(dirname);
+use File::Spec;
+
+my $this_dir = dirname(abs_path(__FILE__));
+my $root_rc = File::Spec->catfile($this_dir, '..', '.latexmkrc');
+
+do $root_rc if -e $root_rc;