fixes #9563: add callout about browser zooming to browser support section

getting-started.html

@@ -188,6 +188,9 @@ if (navigator.userAgent.match(/IEMobile\/10\.0/)) {
 
     <h3>Modals and mobile devices</h3>
     <p>Support for <code>overflow: hidden</code> on the <code>&lt;body&gt;</code> element is quite limited in iOS and Android. To that end, when you scroll past the top or bottom of a modal in either of those devices' browsers, the <code>&lt;body&gt;</code> content will begin to scroll.</p>
+
+    <h3>Browser zooming</h3>
+    <p>Page zooming inevitably presents rendering artifacts in some components, both in Bootstrap and the rest of the web. Depending on the issue, we may be able to fix it (search first and then open an issue if need be). However, we tend to ignore these as they often have no direct solution other than hacky workarounds.</p>
   </div>