Fix deprecation warnings

keymaps/notational-velocity.cson

@@ -7,5 +7,5 @@
 
 # For more detailed documentation see
 # https://atom.io/docs/latest/advanced/keymaps
-'.workspace':
+'.atom-workspace':
   'ctrl-alt-o': 'notational-velocity:toggle'

styles/notational-velocity.less

@@ -1,6 +1,6 @@
 // The ui-variables file is provided by base themes provided by Atom.
 //
-// See https://github.com/atom/atom-dark-ui/blob/master/stylesheets/ui-variables.less
+// See https://github.com/atom/atom-dark-ui/blob/master/styles/ui-variables.less
 // for a full listing of what's available.
 @import "ui-variables";