Update URL for stickers

readme.md

@@ -18,7 +18,7 @@
 	<a href="contributing.md">Contribution guide</a>&nbsp;&nbsp;&nbsp;
 	<a href="create-list.md">Creating a list</a>&nbsp;&nbsp;&nbsp;
 	<a href="https://twitter.com/awesome__re">Twitter</a>&nbsp;&nbsp;&nbsp;
-	<a href="https://www.stickermule.com/marketplace/10034-awesome">Sticker</a>
+	<a href="https://www.redbubble.com/people/sindresorhus/works/30364188-awesome-logo">Stickers & t-shirts</a>
 </p>
 
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