title: ngx-pagination and total visible page numbers at a time
body: <p>I am using ngx pagination in my angular 6 application, all was well until it comes to total page numbers visible at a time, I have set my HTML template code as below, but as per attached image, it shows 1 .. 10. I don't want such kind of display, I want 1,2,3 at a time and when I click on next, pager display should be 2,3,4 and so on. 
  <a href="https://i.stack.imgur.com/venNA.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/venNA.png" alt="current pagination"></a></p>
  
  <pre><code>&lt;pagination-controls  (pageChange)= "ChanggPage($event)" maxSize="3" &gt;
  &lt;/pagination-controls&gt;
  </code></pre>