title: avoid auto escape in html template
body: <p>Trying to render HTML template with an URL. The problem is that the URL contains () in it, and those characters are escaped.</p>
  
  <p>I tried to use <code>template.URL("http://myurl.com/(data)/aaa.jpg")</code> and also <code>template.HTML("http://myurl.com/(data)/aaa.jpg")</code> but it still escape brackets.</p>
  
  <p>I'm using <a href="https://github.com/gin-gonic/gin#html-rendering" rel="nofollow">gin gonic</a>.</p>
  
  <pre><code>router.GET("/test", func(c *gin.Context) {
      c.HTML(http.StatusOK, "test.tmpl", gin.H{
          "url": template.URL("http://myurl.com/(data)/aaa.jpg"),
          // "url": template.HTML("http://myurl.com/(data)/aaa.jpg"),
  })
  </code></pre>
  
  <p>Template file :</p>
  
  <pre><code>&lt;div&gt;
    &lt;img src="{{.url}}" /&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>final ouput :</p>
  
  <pre><code>&lt;div&gt;
    &lt;img src="http://myurl.com/%28data%29/aaa.jpg"/&gt;
  &lt;/div&gt;
  </code></pre>