How to edit my table?

Hi all, i need help to add column named "Edit" on all row for edit a table row.
can you help me please

Here is my controller:

PHP Code:

    public function pronosticshistory(){
        $template = array(
                'table_open'            => '',
                'thead_open'            => '',
                'thead_close'           => '',
                'heading_row_start'     => '<tr>',
                'heading_row_end'       => '</tr>',
                'heading_cell_start'    => '<th>',
                'heading_cell_end'      => '</th>',
                'tbody_open'            => '',
                'tbody_close'           => '',

                'row_start'             => '<tr>',
                'row_end'               => '</tr>',
                'cell_start'            => '<td>',
                'cell_end'              => '</td>',
                'row_alt_start'         => '<tr>',
                'row_alt_end'           => '</tr>',
                'cell_alt_start'        => '<td>',
                'cell_alt_end'          => '</td>',
                'table_close'           => ''
        );
    $this->table->set_template($template);
    $tableau = $this->admin_model->pronosticslist();
    $data['tableau'] = $this->table->generate($tableau);
        $data['title'] = 'Historique des pronostics';
        $this->load->view('admin/pronosticshistory', $data);
    } 


Here is my model:

PHP Code:

     public function pronosticslist(){
          $this->db->select('date, equipe1, equipe2, pronostic, misereco, gagnant');
          $this->db->from('pronostics');
          $this->db->order_by('id', 'ASC');
          $query = $this->db->get();
          $result = $query->result_array();
          return $result;        
      } 


Here is my html:

Code:

         <table class="table" style="background-color: white;">
           <thead>
             <tr>
               <th scope="col">Date du match</th>
               <th scope="col">Equipe 1</th>
               <th scope="col">Equipe 2</th>
               <th scope="col">Pronostic</th>                
               <th scope="col">Mise recommander</th>
               <th scope="col">Résultat du match</th>
             </tr>
           </thead>
           <tbody>
             <?php echo $tableau ?>
           </tbody>
         </table>