added missing information about slider

website/index.html

@@ -257,7 +257,7 @@ <h1 class="section-heading">More results</h1>
                             <p class="chart-description">We had a preview of applications that contained a mean of remuneration, be it in-app purchases or ads, in the Sankey diagram. 
             But here we focus solely on that information! Unfortunately, we don't have the data for the Apple dataset.</p> 
                             <p class="chart-description"><b>Hover the area</b> of the bar you are interested in to display the number of applications it contains.
-            Select a category with the <b>drop down menu</b> and change between datasets with the <b>slider</b>.</p> 
+            Select a category with the <b>drop down menu</b> and change between datasets with the <b>slider</b>. Use the <b>second slider</b> to change whether you want to look for all the applications or for the top 10/100/1000.</p> 
                             <p class="chart-description"><em>IAP: In-App Purchases</em></p> 
                         </div>                         
                     </div>