index.html.in: use <abbr> to explain the Commuter Bus zone

diff --git a/index.html.in b/index.html.in
index 72a03a37e096f4128152cba329d3040ce4bdacd7..a68c273f33bf60bb8153367e759df80935d51e14 100644 (file)
--- a/index.html.in
+++ b/index.html.in
@@ -244,7 +244,10 @@
                    pattern="[a-zA-Z0-9]*" />
           </div>
 
-          <p>Zone:</p>
+          <p>
+            <abbr title="Found on the MTA's PDF schedule for your route">
+              Zone</abbr>:
+          </p>
           <div>
             <input type="radio" required
                    name="zone"