docs: Add note for hxLocation()

docs/redirect_response.md

@@ -13,6 +13,7 @@ Sets the `HX-Location` header to redirect without reloading the whole page.
 ```php
 return redirect()->hxLocation('/path');
 ```
+For convenience, the set path with `http(s)://` will be converted to relative. Like this: `http://example.com/articles/` it will become `/articles/`.
 
 For more information, please see [hx-location](https://htmx.org/headers/hx-location/).