fix name of button used to show sends

include/aux-sends.html

@@ -94,13 +94,13 @@ <h3>Using the Send Fader</h3>
 </p>
 <h3>Map Aux Sends To Main Faders</h3>
 <p>
-  In Mixer mode, pressing the button marked <kbd class="menu">Aux</kbd> on a aux bus will
+  In Mixer mode, pressing the button marked <kbd class="menu">Show Sends</kbd> on a aux bus will
   alter the channel strip for every track or bus that feeds the aux bus. Many
   aspects of the strip will become insensitive and/or change their visual
   appearance. More importantly, the main fader of the affected channel strips
   will now control the send level and <strong>not</strong> the track gain.
   This gives a larger, more configurable control to alter the level. Clicking the
-  <kbd class="menu">Aux</kbd> button of the aux bus again reverts the
+  <kbd class="menu">Show Sends</kbd> button of the aux bus again reverts the
   channel strips to their normal use.
 </p>