diff --git a/src/template.html b/src/template.html
index 5c7f539..9c2adc2 100644
--- a/src/template.html
+++ b/src/template.html
@@ -40,7 +40,11 @@
 
         <div id="input-container">
             <textarea id="input-lines" class="input-items" rows="15" cols="60" name="text"
-            placeholder="Enter names to be shuffled, one per line. Leave this area empty in order to use a default set of generated names."></textarea>
+            placeholder="Enter names to be shuffled, one per line. Leave this area empty in order to use a default set of generated names.
+
+You can also customise the centre of the spinner with an image. Just put ?imgUrl= at the end of the web address and the URL of the image you want to use.
+
+For example, https://wheel.jcreek.co.uk/?imgUrl=https://www.mammal.org.uk/wp-content/uploads/2021/09/red-fox-300x300.jpg"></textarea>
             <button id="startSpinning" class="input-items button button-green" role="button">Start spinning</button>
         </div>