Add mynoise.net noise machine

dotfiles/config/bmo/wish.ini

@@ -27,6 +27,7 @@
     riot    = https://riot.im/app/
     samharris = https://www.samharris.org/podcast/full_archive
     slowradio = http://www.slowradio.cz/
+    wnoise  = https://mynoise.net/NoiseMachines/whiteNoiseGenerator.php
     rdt     = https://www.reddit.com/subreddits/
     so      = https://stackoverflow.com/
     tjc     = https://together.jolla.com/