README.md in piggybak_variants-0.0.14 vs README.md in piggybak_variants-0.0.15

@@ -17,11 +17,16 @@
 
 In the admin, define option configurations and option values for each option, then create variants for your sellable instances.
 
 Finally, add `<%= variant_cart_form(@instance) %>` to your sellable item's show page to render the cart form.
 
-OPTION:  `<%= variant_cart_form(@instance, :controls => 'dropdowns) %>` to render dropdowns instead of radio buttons.
+OPTION:  `<%= variant_cart_form(@instance, :controls => 'dropdowns') %>` to render dropdowns instead of radio buttons.
 
+In your `config/environments/production.rb`, add the following line to allow pre-compilation of piggybak_variants.js:
+
+    config.assets.precompile += %w(piggybak_variants/piggybak_variants.js)
+
+So either add that line, or if you already have it enabled just add `piggybak_variants/piggybak_variants.js` to the array of values.
 
 TODO
 ========
 
 * Notes specified in variant.rb