Updated URL.

README.txt

@@ -6,4 +6,4 @@ Interset is a means of converting among various tag sets in natural language pro
 
 Interset is implemented as a library for Perl and published as Lingua::Interset on CPAN. Writing a conversion script for your particular corpus format is then as easy as reading/writing the data in that format, plus calling e.g. $output_tag = encode('mul::google', decode('en::penn', $input_tag));.
 
-The morphosyntactic features of Interset served as the base for definition of the Universal Features, part of the (new in 2014) Universal Dependencies standard. Interset was also used to create conversion tables from many existing tagsets to the universal POS tags and features. For more details, see http://universaldependencies.github.io/docs/.
+The morphosyntactic features of Interset served as the base for definition of the Universal Features, part of the (new in 2014) Universal Dependencies standard. Interset was also used to create conversion tables from many existing tagsets to the universal POS tags and features. For more details, see https://universaldependencies.org/.