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-rw-r--r--guides/source/action_controller_overview.md4
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diff --git a/guides/source/action_controller_overview.md b/guides/source/action_controller_overview.md
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@@ -568,10 +568,10 @@ end
Note that while for session values you set the key to `nil`, to delete a cookie value you should use `cookies.delete(:key)`.
-Rendering xml and json data
+Rendering XML and JSON data
---------------------------
-ActionController makes it extremely easy to render `xml` or `json` data. If you've generated a controller using scaffolding, it would look something like this:
+ActionController makes it extremely easy to render `XML` or `JSON` data. If you've generated a controller using scaffolding, it would look something like this:
```ruby
class UsersController < ApplicationController