Updated return type of host method to HostMiddlewareDecorator

docs/book/v3/api.md

@@ -244,6 +244,22 @@ inner layers.
 
 Stratigility provides the following utility functions.
 
+### host
+
+```php
+function Zend\Stratigility\host(
+  string $host,
+  Psr\Http\Server\MiddlewareInterface $middleware
+) : Zend\Stratigility\Middleware\HostMiddlewareDecorator
+```
+
+`host()` provides a convenient way to perform host name segregation when piping your
+middleware.
+
+```php
+$pipeline->pipe(host('example.com', $middleware));
+```
+
 ### path
 
 ````

docs/book/v3/migration.md

@@ -228,7 +228,7 @@ Release 3.0 adds the following utility functions:
 function Zend\Stratigility\host(
   string $host,
   Psr\Http\Server\MiddlewareInterface $middleware
-): Psr\Http\Server\MiddlewareInterface
+) : Zend\Stratigility\Middleware\HostMiddlewareDecorator
 ```
 
 This is a convenience wrapper around instantiation of a

src/functions/host.php

@@ -21,7 +21,7 @@
  * $pipeline->pipe(host('host.foo', $middleware));
  * </code>
  */
-function host(string $host, MiddlewareInterface $middleware) : MiddlewareInterface
+function host(string $host, MiddlewareInterface $middleware) : Middleware\HostMiddlewareDecorator
 {
     return new Middleware\HostMiddlewareDecorator($host, $middleware);
 }