title: How to add id to action in HTML.form
body: <p>I have form:</p>
  
  <pre><code>&lt;form method="POST" action="/user/${id}"&gt;
      &lt;input type="text" value="${id}" placeholder="Input Id"&gt;
      &lt;button&gt;Get User&lt;/button&gt;
  &lt;/form&gt;
  </code></pre>
  
  <p>I need to add input data to URI, like this /user/23, where 23 in inputed data.</p>