Updated FAQ

FAQ.md

@@ -2730,6 +2730,7 @@ You can select one of these actions to apply to matching messages:
 * Mark as unread
 * Hide
 * Suppress notification
+* Silent notification
 * Snooze
 * Add star
 * Set importance (local priority)

index.html

@@ -1443,6 +1443,7 @@ X-Google-Original-From: Somebody &lt;somebody+extra@example.org&gt;</code></pre>
 <li>Mark as unread</li>
 <li>Hide</li>
 <li>Suppress notification</li>
+<li>Silent notification</li>
 <li>Snooze</li>
 <li>Add star</li>
 <li>Set importance (local priority)</li>