Minor rewording

...and aligning the template to https://symfony.com/doc/current/security.html#form-login

Author: ThomasLandauer

security/form_login.rst

@@ -142,26 +142,26 @@ previously requested URL and always redirect to the default page:
 Control the Redirect Using Request Parameters
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-The URL to redirect after the login can be defined using the ``_target_path``
-parameter of GET and POST requests. Its value must be a relative or absolute
+The URL to redirect to after the login can be dynamically defined using the ``_target_path``
+parameter of the GET or POST request. Its value must be a relative or absolute
 URL, not a Symfony route name.
 
-Defining the redirect URL via GET using a query string parameter:
+For GET, use a query string parameter:
 
 .. code-block:: text
 
     http://example.com/some/path?_target_path=/dashboard
 
-Defining the redirect URL via POST using a hidden form field:
+For POST, use a hidden form field:
 
 .. code-block:: html+twig
 
-    {# templates/security/login.html.twig #}
-    <form action="{{ path('login') }}" method="post">
+    {# templates/login/index.html.twig #}
+    <form action="{{ path('app_login') }}" method="post">
         {# ... #}
 
-        <input type="hidden" name="_target_path" value="{{ path('account') }}"/>
-        <input type="submit" name="login"/>
+        <input type="hidden" name="_target_path" value="{{ path('account') }}">
+        <input type="submit" name="login">
     </form>
 
 Using the Referring URL