🇦🇺Australia @owenmck

owenmck → created an issue.

Why does the page need review?

Drivers section appears to be out of date.

What information needs review? 

Starting in drupal:9.4.0 the stated architecture for the core drivers is deprecated.  It  is removed from drupal:11.0.0. For example The MySQL database driver has been moved to the core mysql module, so that its namespace is now 

Drupal\mysql\Driver\Database\mysql

See https://www.drupal.org/node/3129492 

What improvement is suggested? 

A minor rewrite of this introductory information to update its explanation of Drupal's database drivers.

Added the verb, be, into a sentence: i.e. changed "so it reflects that there should one more element" to " so it reflects that there should be one more element"

In the Introduction section, minor English expression improvements.

In case anyone else comes here looking for help:

DOCUMENTATION
The documentation for the '#theme' =>'table' render element can be a bit hard to find.
Here are 3 places I have found in Drupal 10, where the documentation is helpful.  (A bit of experimenting on your own will greatly help you too):

1. \Drupal\Core\Render\Element\Table, which is  /core/lib/Drupal/Core/Render/Element/Table.php
2. Further documentation is available in /core/includes/theme.inc::template_preprocess_table()
3. Also look in /core/modules/system/templates/table.html.twig

Here are some minor edits, which got the above sample table rendering as intended for me, in Drupal 10:

Suggested solution

  /**
   * @return array
   */
  public function tableRenderTest(): array {
    return [
      '#theme' => 'table',
      '#caption' => 'My Table Caption',
      '#attributes' => ['class' => 'my-table-class'],

      /*
      Note: the tag <thead> is hard-coded into the default 'table.html.twig'.
      Also the <tr> tag nested below <thead> is hard-coded likewise.
      If you intend to add attributes such as HTML classes to those tags
      in your project then you must use your own version of the table template.
      */
      '#header' => [
        [
          'data' => 'Name',
        ],
        [
          'data' => 'Age',
          'class' => 'text-align-right'
        ],
        [
          'data' => 'City'
        ],
      ],

      '#rows' => [
        [
          /* Begin row 1 */
          'data' => [
            [
              'data' => 'John'
            ],
            [
              'data' => '12',
              'class' => 'text-align-right'
            ],
            [
              'data' => 'DC'
            ],
          ],
          'class' => 'my-row-class',
          /* End row 1 */
        ],
        [
          /* Begin row 2 */
          'data' => [
            [
              'data' => 'Mike',
            ],
            [
              'data' => '23',
              'class' => ['text-align-right']
            ],
            [
              'data' => 'NY'
            ],
          ],
          'class' => 'my-row-class1',
          /* End row 2 */
        ],
      ]
    ];
  }

Resulting HTML
 

<table class="my-table-class" data-striping="1">
      <caption>My Table Caption</caption>
  
  
      <thead>
      <tr>
                  <th>Name</th>
                  <th class="text-align-right">Age</th>
                  <th>City</th>
              </tr>
    </thead>
  
      <tbody>
              <tr class="my-row-class">
                      <td>John</td>
                      <td class="text-align-right">12</td>
                      <td>DC</td>
                  </tr>
              <tr class="my-row-class1">
                      <td>Mike</td>
                      <td class="text-align-right">23</td>
                      <td>NY</td>
                  </tr>
          </tbody>
    </table>

owenmck → created an issue.

"Webroot" is jargon which needs unpacking.
See  [Solved] where/what is "webroot" directory? →