Add URI to reddit

dotfiles/bmo/uris.ini

     idosbrq = http://jizdnirady.idnes.cz/brno/spojeni/
     ma      = http://www.mapy.cz/
     ol      = http://www.openlmi.org/
+    rdt     = https://www.reddit.com/
     so      = http://stackoverflow.com/
     tjc     = https://together.jolla.com/
     tor     = https://theoldreader.com/