fix: empty RSS feed link on news page neovim#415

Related to 4ce26f1

Related to neovim#400

Author: kkkrist

hugo.toml

@@ -22,6 +22,7 @@ title = 'Neovim'
     name = "Neovim Newsletter"
     authors = "Neovim Community"
     url = "/news"
+    feed = "/news.xml"
 
 [markup]
   [markup.goldmark]