Added nl2br filter to the value, to display the correct content from textareas in multiple lines.

Resources/views/CRUD/base_show_field.html.twig

@@ -10,4 +10,4 @@ file that was distributed with this source code.
 #}
 
 <th>{% block name %}{{ admin.trans(field_description.label) }}{% endblock %}</th>
-<td>{% block field %}{{ value }}{% endblock %}</td>
+<td>{% block field %}{{ value|nl2br }}{% endblock %}</td>