1 files changed, 45 insertions, 23 deletions

diff --git a/guides/source/rails_on_rack.md b/guides/source/rails_on_rack.md
index 98e96f2643..0e59395c8a 100644
--- a/guides/source/rails_on_rack.md
+++ b/guides/source/rails_on_rack.md
@@ -143,7 +143,7 @@ Purpose of each of this middlewares is explained in the [Internal Middlewares](#
 
 ### Configuring Middleware Stack
 
-Rails provides a simple configuration interface `config.middleware` for adding, removing and modifying the middlewares in the middleware stack via `application.rb` or the environment specific configuration file `environments/<environment>.rb`.
+Rails provides a simple configuration interface `config.middleware` for adding, removing and modifying the middlewares in the middleware stack via `application.rb` or the environment specific configuration file `environments/<environment>.rb`.
 
 #### Adding a Middleware
 
@@ -221,70 +221,92 @@ config.middleware.delete "Rack::MethodOverride"
 
 Much of Action Controller's functionality is implemented as Middlewares. The following list explains the purpose of each of them:
 
- *`ActionDispatch::Static`*
+ **`ActionDispatch::Static`**
+
 * Used to serve static assets. Disabled if `config.serve_static_assets` is true.
 
- *`Rack::Lock`*
+ **`Rack::Lock`**
+
 * Sets `env["rack.multithread"]` flag to `true` and wraps the application within a Mutex.
 
- *`ActiveSupport::Cache::Strategy::LocalCache::Middleware`*
+ **`ActiveSupport::Cache::Strategy::LocalCache::Middleware`**
+
 * Used for memory caching. This cache is not thread safe.
 
- *`Rack::Runtime`*
+ **`Rack::Runtime`**
+
 * Sets an X-Runtime header, containing the time (in seconds) taken to execute the request.
 
- *`Rack::MethodOverride`*
+ **`Rack::MethodOverride`**
+
 * Allows the method to be overridden if `params[:_method]` is set. This is the middleware which supports the PUT and DELETE HTTP method types.
 
- *`ActionDispatch::RequestId`*
+ **`ActionDispatch::RequestId`**
+
 * Makes a unique `X-Request-Id` header available to the response and enables the `ActionDispatch::Request#uuid` method.
 
- *`Rails::Rack::Logger`*
+ **`Rails::Rack::Logger`**
+
 * Notifies the logs that the request has began. After request is complete, flushes all the logs.
 
- *`ActionDispatch::ShowExceptions`*
+ **`ActionDispatch::ShowExceptions`**
+
 * Rescues any exception returned by the application and calls an exceptions app that will wrap it in a format for the end user.
 
- *`ActionDispatch::DebugExceptions`*
+ **`ActionDispatch::DebugExceptions`**
+
 * Responsible for logging exceptions and showing a debugging page in case the request is local.
 
- *`ActionDispatch::RemoteIp`*
+ **`ActionDispatch::RemoteIp`**
+
 * Checks for IP spoofing attacks.
 
- *`ActionDispatch::Reloader`*
+ **`ActionDispatch::Reloader`**
+
 * Provides prepare and cleanup callbacks, intended to assist with code reloading during development.
 
- *`ActionDispatch::Callbacks`*
+ **`ActionDispatch::Callbacks`**
+
 * Runs the prepare callbacks before serving the request.
 
- *`ActiveRecord::ConnectionAdapters::ConnectionManagement`*
+ **`ActiveRecord::ConnectionAdapters::ConnectionManagement`**
+
 * Cleans active connections after each request, unless the `rack.test` key in the request environment is set to `true`.
 
- *`ActiveRecord::QueryCache`*
+ **`ActiveRecord::QueryCache`**
+
 * Enables the Active Record query cache.
 
- *`ActionDispatch::Cookies`*
+ **`ActionDispatch::Cookies`**
+
 * Sets cookies for the request.
 
- *`ActionDispatch::Session::CookieStore`*
+ **`ActionDispatch::Session::CookieStore`**
+
 * Responsible for storing the session in cookies.
 
- *`ActionDispatch::Flash`*
+ **`ActionDispatch::Flash`**
+
 * Sets up the flash keys. Only available if `config.action_controller.session_store` is set to a value.
 
- *`ActionDispatch::ParamsParser`*
+ **`ActionDispatch::ParamsParser`**
+
 * Parses out parameters from the request into `params`.
 
- *`ActionDispatch::Head`*
+ **`ActionDispatch::Head`**
+
 * Converts HEAD requests to `GET` requests and serves them as so.
 
- *`Rack::ConditionalGet`*
+ **`Rack::ConditionalGet`**
+
 * Adds support for "Conditional `GET`" so that server responds with nothing if page wasn't changed.
 
- *`Rack::ETag`*
+ **`Rack::ETag`**
+
 * Adds ETag header on all String bodies. ETags are used to validate cache.
 
- *`ActionDispatch::BestStandardsSupport`*
+ **`ActionDispatch::BestStandardsSupport`**
+
 * Enables “best standards support” so that IE8 renders some elements correctly.
 
 TIP: It's possible to use any of the above middlewares in your custom Rack stack.