Feat: Add ability to copy code blocks or quotes (if they are commands)

On mouse clickhttps://www.w3schools.com/howto/howto_js_copy_clipboard.asp how to copy to clipboard

а вот и 
```
<h3 onclick="myFunction(this, 'red')">Click me to change my color.</h3>

<script>
function myFunction(element, color) {
  element.style.color = color;
}
</script>
```
and to use `this`?