title: Add extra details Woocommerce order edit pages in admin
body: <p>Hi I am using Woocommerce version 3.2.6. We have some orders. </p>
  
  <p>I want to add one extra details to orders when the <code>product id</code> is <code>123</code> in the order edit page in wordpress backend. </p>
  
  <p>I wanto add this: </p>
  
  <pre><code>&lt;a href="http://example.com/new-view/?id=&lt;?php echo $order_id?;&gt;"&gt;Click here to view this&lt;/a&gt;
  </code></pre>
  
  <p>ie: We have <strong>order[order id =3723]</strong> , and the ordered item id is <strong>123</strong>. </p>
  
  <p>Then in <code>http://example.com/wp-admin/post.php?post=3723&amp;action=edit</code>, I want to add the following link below the corresponding item details: </p>
  
  <pre><code>"&lt;a href="http://example.com/new-view/?id=&lt;?php echo $order_id?;&gt;"&gt;Click here to view this&lt;/a&gt;"
  </code></pre>
  
  <p>How we can do this ?</p>
  
  <p>Which hook is suitable for this. Actually I am searching in <a href="https://docs.woocommerce.com/wc-apidocs/hook-docs.html" rel="nofollow noreferrer">https://docs.woocommerce.com/wc-apidocs/hook-docs.html</a>. </p>
  
  <p>And I found Class <code>WC_Meta_Box_Order_Items</code>. But i don't know how to use this.</p>