minor #1633 Fix typo on only and without methods documentation (JeanDavidDaviet)

This PR was squashed before being merged into the 2.x branch.

Discussion
----------

Fix typo on only and without methods documentation

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| Issues        |
| License       | MIT

There are two typos in the `only` and `without` examples.
The intermediate representation still have the style and the classes attributes respectively.

Commits
-------

dcfcbd7 Fix typo on only and without methods documentation

Author: kbond

src/TwigComponent/doc/index.rst

@@ -1025,14 +1025,14 @@ Extract specific attributes and discard the rest:
 
 .. code-block:: html+twig
 
+    {# render component #}
+    {{ component('MyComponent', { class: 'foo', style: 'color:red' }) }}
+
     {# templates/components/MyComponent.html.twig #}
     <div{{ attributes.only('class') }}>
       My Component!
     </div>
 
-    {# render component #}
-    {{ component('MyComponent', { class: 'foo', style: 'color:red' }) }}
-
     {# renders as: #}
     <div class="foo">
       My Component!
@@ -1045,14 +1045,14 @@ Exclude specific attributes:
 
 .. code-block:: html+twig
 
+    {# render component #}
+    {{ component('MyComponent', { class: 'foo', style: 'color:red' }) }}
+
     {# templates/components/MyComponent.html.twig #}
     <div{{ attributes.without('class') }}>
       My Component!
     </div>
 
-    {# render component #}
-    {{ component('MyComponent', { class: 'foo', style: 'color:red' }) }}
-
     {# renders as: #}
     <div style="color:red">
       My Component!