* Replace Jekyll highlight tags with fenced code blocks
Replace Jekyll highlight tags with fenced code blocks.
Canonicalize javascript to js.
Correct highlighting languages.
Add highlighting to code blocks.
Remove leading $ from bash blocks.
Remove empty lines at start and end of code blocks.
Stripped trailing whitespace.
* Fix language of code highlighting
* Added slack notification
* Added slack notification to doc.
* Send notifications as single message & updated doc. example
* Remove not needed variable
