README.md in gretel-2.2.0.rc1 vs README.md in gretel-2.2.0.rc2

@@ -203,14 +203,14 @@
     <% end %>
   <% end %>
 <% end %>
 ```
 
-Setting custom breadcrumb trails
+Setting breadcrumb trails
 --------------------------------
 
-You can set a custom breadcrumb trail via `params[:trail]`. This makes it possible to link to a different breadcrumb trail than the one specified in your breadcrumb.
+You can set a breadcrumb trail via `params[:trail]`. This makes it possible to link to a different breadcrumb trail than the one specified in your breadcrumb.
 
 An example is if you have a store with products that have a default parent to their category, but when linking from the review section, you want to link back to the reviews instead.
 
 ### Initial setup
 
@@ -244,9 +244,17 @@
   <%= link_to @product.name, product_path(product, trail: breadcrumb_trail) %>
 <% end %>
 ```
 
 The product view will now have the breadcrumb trail from the first page (reviews) instead of its default parent.
+
+### Custom trail param
+
+The default trail param is `params[:trail]`. You can change it in an initializer:
+
+```ruby
+Gretel::Trail.trail_param = :other_param
+```
 
 ### Note
 
 Please use the trail functionality with care; the trails can get very long.