From 11052fe2ece8d141779961809a1f4a713a2f9827 Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Fri, 28 May 2021 11:31:01 -0400
Subject: [PATCH] add 3-button navigation introduction

---
 static/usage.html | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/static/usage.html b/static/usage.html
index eee9a94b..c2821a50 100644
--- a/static/usage.html
+++ b/static/usage.html
@@ -214,6 +214,11 @@
                 <section id="3-button-navigation">
                     <h3><a href="#3-button-navigation">3-button navigation</a></h3>
 
+                    <p>3-button navigation is Android's oldest touchscreen-based navigation
+                    system. It will remain supported for the foreseeable future to provide
+                    accessibility for users unable to easily use the gestures. It's older than
+                    2-button navigation but isn't considered a legacy feature.</p>
+
                     <p>A large row across the bottom of the screen is reserved for navigation
                     buttons. The <strong>Back</strong> button is on the left, the
                     <strong>Home</strong> button is in the center and the <strong>Recent