Highlight and Markdown Code

## Reference * [highlight](https://highlightjs.org/static/demo/) * [prism](http://prismjs.com/download.html) * [marked](https://github.com/chjj/marked) used for md syntax. ```markdown <script src="https://code.jquery.com/jquery-2.1.1.min.js"></script> <script src="https://github.com/PrismJS/prism/blob/gh-pages/prism.js"></script> <link href="https://github.com/PrismJS/prism/blob/gh-pages/themes/prism.css" rel='stylesheet'> <pre><code class="javascript"> function add(x, y){ return x+y; } var a = 11; var b = 22.5; var c = add(a,b); </code></pre> ``` ```html

function add(x, y){
    return x+y;
}
var a = 11;
var b = 22.5;
var c = add(a,b);

```