Add latency post to footer links

_includes/footer.html

@@ -10,6 +10,7 @@ <h4 class=band__title>Learn:</h4>
       <li><a href="/2018/11/css-and-network-performance/?utm_source=learn&utm_medium=internal&utm_campaign=learn">CSS Performance</a>
       <li><a href="/2023/07/in-defence-of-domcontentloaded/?utm_source=learn&utm_medium=internal&utm_campaign=learn">Does <code>DOMContentLoaded</code> Still Matter?</a>
       <li><a href="/2021/02/measuring-network-performance-in-mobile-safari/?utm_source=learn&utm_medium=internal&utm_campaign=learn">Improve Web Performance on iOS</a>
+      <li><a href="/2024/09/optimising-for-high-latency-environments/?utm_source=learn&utm_medium=internal&utm_campaign=learn">Optimise for High Latency</a>
       <li><a href="/2022/03/optimising-largest-contentful-paint/?utm_source=learn&utm_medium=internal&utm_campaign=learn">Optimise Largest Contentful Paint</a>
       <li><a href="/2020/05/the-fastest-google-fonts/?utm_source=learn&utm_medium=internal&utm_campaign=learn">Speed Up Google Fonts</a>
       <li><a href="/2023/10/the-three-c-concatenate-compress-cache/?utm_source=learn&utm_medium=internal&utm_campaign=learn">Can We Drop Our Build Tools Yet?</a>