Seems simple, but it took me some digging to find this.
To indent code blocks in markdown files, simply add 4 blank spaces in front of the code block from within the list.
Exact .md:
* This is a list item ```javascript var i = "this is my code block!"; var j = "i added indentation before the ``` "; ```
becomes:
This is a list item
var i = "this is my code block!";
var j = "i added indentation before the ``` ";
And that's it! Huzzah!
by Shayla Sawchenko