fix some markup

site/src/routes/_components/Blurb.svelte

@@ -123,21 +123,21 @@
 		<h2>Write less code</h2>
 		<p>Build boilerplate-free components using languages you already know — HTML, CSS and JavaScript</p>
 
-		<a class="learn-more">learn more</a>
+		<span class="learn-more">learn more</span>
 	</a>
 
 	<a href="blog/virtual-dom-is-pure-overhead" class='box bg-flash white' style="grid-area: two">
 		<h2>No virtual DOM</h2>
 		<p>Svelte compiles your code to tiny, framework-less vanilla JS — your app starts fast and stays fast</p>
 
-		<a class="learn-more">learn more</a>
+		<span class="learn-more">learn more</span>
 	</a>
 
 	<a href="blog/svelte-3-rethinking-reactivity" class='box bg-second white' style="grid-area: three">
 		<h2>Truly reactive</h2>
 		<p>No more complex state management libraries — Svelte brings reactivity to JavaScript itself</p>
 
-		<a class="learn-more">learn more</a>
+		<span class="learn-more">learn more</span>
 	</a>
 
 	<div class="linkify description" style="grid-area: what;">

site/src/routes/_components/WhosUsingSvelte.svelte

@@ -44,15 +44,15 @@
 </style>
 
 <div class="logos">
-	<a target="_blank" href="https://beyonk.com"><img src="organisations/beyonk.svg" alt="Beyonk logo"></a>
-	<a target="_blank" href="https://chess.com" style="background-color: rgb(49,46,43);"><img src="organisations/chess.svg" alt="Chess.com logo"></a>
-	<a target="_blank" href="https://datawrapper.de"><img src="organisations/datawrapper.svg" alt="Datawrapper logo"></a>
-	<a target="_blank" href="https://db.nomics.world" style="background-color: rgb(15,39,47);"><img src="organisations/dbnomics.png" alt="DBNomics logo"></a>
-	<a target="_blank" href="https://from-now-on.com"><img src="organisations/from-now-on.png" alt="From-Now-On logo"></a>
-	<a target="_blank" href="https://itslearning.com"><img src="organisations/itslearning.svg" alt="itslearning logo"></a>
-	<a target="_blank" href="http://mustlab.ru"><img src="organisations/mustlab.png" alt="Mustlab logo"></a>
-	<a target="_blank" href="https://www.nesta.org.uk"><img src="organisations/nesta.svg" alt="Nesta logo"></a>
-	<a target="_blank" href="https://nytimes.com"><img src="organisations/nyt.svg" alt="The New York Times logo"></a>
-	<a target="_blank" href="https://www.stone.co"><img src="organisations/stone.svg" alt="Stone Payments logo"></a>
-	<a target="_blank" href="https://github.com/sveltejs/svelte/blob/master/site/src/routes/_components/WhosUsingSvelte.svelte" class="add-yourself"><span>+ your company?</span></a>
+	<a target="_blank" rel="noopener" href="https://beyonk.com"><img src="organisations/beyonk.svg" alt="Beyonk logo"></a>
+	<a target="_blank" rel="noopener" href="https://chess.com" style="background-color: rgb(49,46,43);"><img src="organisations/chess.svg" alt="Chess.com logo"></a>
+	<a target="_blank" rel="noopener" href="https://datawrapper.de"><img src="organisations/datawrapper.svg" alt="Datawrapper logo"></a>
+	<a target="_blank" rel="noopener" href="https://db.nomics.world" style="background-color: rgb(15,39,47);"><img src="organisations/dbnomics.png" alt="DBNomics logo"></a>
+	<a target="_blank" rel="noopener" href="https://from-now-on.com"><img src="organisations/from-now-on.png" alt="From-Now-On logo"></a>
+	<a target="_blank" rel="noopener" href="https://itslearning.com"><img src="organisations/itslearning.svg" alt="itslearning logo"></a>
+	<a target="_blank" rel="noopener" href="http://mustlab.ru"><img src="organisations/mustlab.png" alt="Mustlab logo"></a>
+	<a target="_blank" rel="noopener" href="https://www.nesta.org.uk"><img src="organisations/nesta.svg" alt="Nesta logo"></a>
+	<a target="_blank" rel="noopener" href="https://nytimes.com"><img src="organisations/nyt.svg" alt="The New York Times logo"></a>
+	<a target="_blank" rel="noopener" href="https://www.stone.co"><img src="organisations/stone.svg" alt="Stone Payments logo"></a>
+	<a target="_blank" rel="noopener" href="https://github.com/sveltejs/svelte/blob/master/site/src/routes/_components/WhosUsingSvelte.svelte" class="add-yourself"><span>+ your company?</span></a>
 </div>