Make the post headers a bit more uniform

go/blog/blog.go

}
article header .permalink {
	margin-left: 0.1em;
	margin-left: 0.5em;
	text-decoration: none;
	color: #555;
}
article time {
	margin-left: 1em;
	margin-left: 0.5em;
	color: #666;
}