Creating ordered list with correct decimal points and alphabetical.

Introduction:

Influenced by [jirutka](https://gist.github.com/jirutka/32049196ab75547b7f47)

From jirutka:

	Nested numbered list with correct indentation in CSS
	
Reused the code + added alphabetical listing.

order-listing.scss

.order-listing {
	ol {
		list-style: none;
		counter-reset: item;
		
		> li {
			display: table;
			counter-increment: item;
			margin: 0 0 20px;
			&:before {
				content: counters(item, ".") ". ";
				display: table-cell;
				font-weight: bold;
				padding: 0 10px 0 0;
			}
		}
		li ol > li {
			margin: 0;
			&:before {
				content: counters(item, ".") ". ";
			}
			ol > li > ol {
				counter-reset: alpha;
				> li:before {
					content: counter(alpha, lower-alpha) ". ";
					counter-increment: alpha;
				}
			}
			
		}
	}
}