Add todo WWW redirect section to web-optisation guide

blog/nginx-web-optimisation.html

@@ -102,6 +102,8 @@ gzip_types
 				<h2>TODO: Limit requests</h2>
 				<p>To prevent potential DOS attacks, and web scrapers the amount of requests/connections per IP can be reduced</p>
 
+				<h2>TODO: Redirect www/non-www to each other</h2>
+				<p>People still type www. before a domain, even if it's not required. Cringe</p>
 			</section>
 		</main>