title: Get the encoding of an string
body: <p>I'm getting the html from other page with problems in codification. 
  For example: 
  I getting: </p>
  
  <pre><code>aparelho nas sa??das
  </code></pre>
  
  <p>the original text is:</p>
  
  <pre><code>aparelho nas saídas
  </code></pre>
  
  <p>How I get the encoding and convert to original string? </p>
  
  <p>My code:</p>
  
  <pre><code>var GetResponse = API_GET("..."); //this returns html of an http request. 
  HtmlDocument doc = new HtmlDocument();  //the html-parsing 
  doc.LoadHtml(GetResponse);
  var body = doc.DocumentNode.SelectNodes("//div[@class='para']"); 
  ... 
  var para = body[i].InnerHtml; //Here's the problem,it returns the output like: sa??das
  </code></pre>
  
  <p>How I do this? </p>
  
  <p>Thanks in advance</p>