title: How to load an image from URL and display it in tableView cell (Swift 3)
body: <p>I have the image URL and I want to display that image in UIImageView which is placed in a tableView cell.
  I created a custom cell and added an outlet for the imageView.
  Since I am loading news the URL changes accordingly.
  NOTE: I am using Alamofire to process my HTTP requests.</p>
  
  <pre><code>struct News {
      let title: String
      let text: String
      let link: String
      let imgUrl: String
  
      init(dictionary: [String:String]) {
          self.title = dictionary["title"] ?? ""
          self.text = dictionary["text"] ?? ""
          self.link = dictionary["link"] ?? ""
          self.imgUrl = dictionary["imgUrl"] ?? ""
      }
  }
  </code></pre>
  
  <p>And loading info to my custom cell</p>
  
  <pre><code>override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -&gt; UITableViewCell {
      let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as? newsCellTableViewCell
      let news = newsData[indexPath.row]
      cell?.headline.text = news.title
      cell?.excerpt.text = news.text
      cell?.thumbnailImage.text = news.imgUrl
      return cell!
   }
  </code></pre>