Provide Brno location explicitly in wttr nag

dotfiles/config/bmo/nag.ini

     term-color = lred
 
 [nag.def.wttr]
-    command = curl -s 'wttr.in/?1&n&q&T'
+    command = curl -s 'wttr.in/Brno?1&n&q&T'
     expiry = 3 hours
     notify-urgency = low
     term-color = lblue