Quick fix to dom-video examples. Fixes #1103

[awelles]

Fixes #1103

Changes:

Added single noCanvas(); line to setup() in each language's examples/dom-video.html example.

Modified files:

        modified:   src/data/examples/en/16_Dom/08_Video.js
        modified:   src/data/examples/es/16_Dom/08_Video.js
        modified:   src/data/examples/hi/16_Dom/08_Video.js
        modified:   src/data/examples/ko/16_Dom/08_Video.js
        modified:   src/data/examples/zh-Hans/16_Dom/08_Video.js

Single noCanvas(); line added to each:

let button;

function setup() {
 noCanvas();
  // specify multiple formats for different browsers
  fingers = createVideo(['assets/fingers.mov', 'assets/fingers.webm']);
  button = createButton('play');

Buttons are now visible.

[limzykenneth]

Looks good. Thanks!