Use .html.twig in code example instead of .html

src/TokenParser/FromTokenParser.php

@@ -21,7 +21,7 @@ use Twig\Token;
 /**
  * Imports macros.
  *
- *   {% from 'forms.html' import forms %}
+ *   {% from 'forms.html.twig' import forms %}
  *
  * @internal
  */

src/TokenParser/ImportTokenParser.php

@@ -20,7 +20,7 @@ use Twig\Token;
 /**
  * Imports macros.
  *
- *   {% import 'forms.html' as forms %}
+ *   {% import 'forms.html.twig' as forms %}
  *
  * @internal
  */

src/TokenParser/IncludeTokenParser.php

@@ -19,9 +19,9 @@ use Twig\Token;
 /**
  * Includes a template.
  *
- *   {% include 'header.html' %}
+ *   {% include 'header.html.twig' %}
  *     Body
- *   {% include 'footer.html' %}
+ *   {% include 'footer.html.twig' %}
  *
  * @internal
  */

src/TokenParser/SandboxTokenParser.php

@@ -22,7 +22,7 @@ use Twig\Token;
  * Marks a section of a template as untrusted code that must be evaluated in the sandbox mode.
  *
  *    {% sandbox %}
- *        {% include 'user.html' %}
+ *        {% include 'user.html.twig' %}
  *    {% endsandbox %}
  *
  * @see https://twig.symfony.com/doc/api.html#sandbox-extension for details