first commit, adding template sapper

src/components/Nav.svelte

@@ -0,0 +1,60 @@
+<script>
+	export let segment;
+</script>
+
+<style>
+	nav {
+		border-bottom: 1px solid rgba(255,62,0,0.1);
+		font-weight: 300;
+		padding: 0 1em;
+	}
+
+	ul {
+		margin: 0;
+		padding: 0;
+	}
+
+	/* clearfix */
+	ul::after {
+		content: '';
+		display: block;
+		clear: both;
+	}
+
+	li {
+		display: block;
+		float: left;
+	}
+
+	[aria-current] {
+		position: relative;
+		display: inline-block;
+	}
+
+	[aria-current]::after {
+		position: absolute;
+		content: '';
+		width: calc(100% - 1em);
+		height: 2px;
+		background-color: rgb(255,62,0);
+		display: block;
+		bottom: -1px;
+	}
+
+	a {
+		text-decoration: none;
+		padding: 1em 0.5em;
+		display: block;
+	}
+</style>
+
+<nav>
+	<ul>
+		<li><a aria-current="{segment === undefined ? 'page' : undefined}" href=".">home</a></li>
+		<li><a aria-current="{segment === 'about' ? 'page' : undefined}" href="about">about</a></li>
+
+		<!-- for the blog link, we're using rel=prefetch so that Sapper prefetches
+		     the blog data when we hover over the link or tap it on a touchscreen -->
+		<li><a rel=prefetch aria-current="{segment === 'blog' ? 'page' : undefined}" href="blog">blog</a></li>
+	</ul>
+</nav>