DOC add a callout to the deprecation notice

This seems more inline with other docs pages I have seen.
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Ed Wilde 2021-02-11 11:33:01 +13:00 committed by GitHub
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@ -6,8 +6,11 @@ summary: Create objects for modifying request and response objects across contro
# HTTP Middlewares
HTTP Middlewares allow you to put code that will run before or after. These might be used for
authentication, logging, caching, request processing, and many other purposes. Note this interface
replaces the SilverStripe 3 interface [RequestFilter](api:SilverStripe\Control\RequestFilter), which still works but is deprecated.
authentication, logging, caching, request processing, and many other purposes.
[notice]
Note this interface replaces the SilverStripe 3 interface [RequestFilter](api:SilverStripe\Control\RequestFilter), which still works but is deprecated.
[/notice]
To create a middleware class, implement `SilverStripe\Control\Middleware\HTTPMiddleware` and define the
`process(HTTPRequest $request, callable $delegate)` method. You can do anything you like in this