Add website to DESCRIPTION

DESCRIPTION

@@ -16,7 +16,7 @@ Description:
     Enhance R help system by fuzzy search and preview interface, pseudo-postfix operators, and more.
     The `?.` pseudo-postfix operator and the `?` prefix operator displays documents and contents (source or structure) of objects simultaneously to help understanding the objects.
     The `?p` pseudo-postfix operator displays package documents, and is shorter than help(package = foo).
-URL: https://github.com/atusy/felp
+URL: https://felp.atusy.net/, https://github.com/atusy/felp
 BugReports: https://github.com/atusy/felp/issues
 License: MIT + file LICENSE
 Encoding: UTF-8