Installed api platform.

templates/book/index.html.twig

@@ -18,10 +18,9 @@
         <tr>
             <th></th>
             <th>Title</th>
-            <th>Language</th>
             <th>Description</th>
             <th>Publisher</th>
-            <th>Publish_date</th>
+            <th>Publish date</th>
             <th>actions</th>
         </tr>
         </thead>
@@ -38,7 +37,6 @@
                 </td>
                 <td><a href="{{ path('app_book_show', {'id': book.id}) }}"
                        class="text-decoration-none">{{ book.title }}</a></td>
-                <td>{{ book.language }}</td>
                 <td>{{ book.description | slice(0, 200) }}</td>
                 <td>{{ book.publisher }}</td>
                 <td>{{ book.publishDate ? book.publishDate|date('Y-m-d') : '' }}</td>