title: how to install CameraView
body: <p>I wanted to use an Android Camera Library called CameraView,
  <a href="https://natario1.github.io/CameraView/about/install" rel="nofollow noreferrer">https://natario1.github.io/CameraView/about/install</a>. Its documentation says use<br>
  <code>api 'com.otaliastudios:cameraview:2.6.1'</code><br>
   but what does that mean?</p>