Copy button in code examples is mis-aligned

[jstroem]

The copy button on code examples is currently located in the left right corner where it seems very out of place.

IMO we need to move it up top-right and/or put a border around the code and copy button to indicate that they belong together.

Also the code highlight for yaml is missing.

[HelenaMeyer]

@enyo It seems you have fixed the copy button issue, but have you had time to look at the missing code highlight for yaml in docs?