update image versions to reset caching

index.html

@@ -146,20 +146,20 @@
         <section>
             <div id="slider-demo-1" class="citrus-slider" data-citrus='{"height" : "400px", "slideTransition" : "zoom-fade"}'>
                 <div>
-                    <img src="img/1.png?v=1.0.0">
+                    <img src="img/1.png?v=2.0.0">
                     <h2>Fast, light and free</h2>
                     <div style="text-align: center;">
                         <a class="btn btn-primary" href="#installation">Installation</a>
                     </div>
                 </div>
                 <div>
-                    <img src="img/2.png?v=1.0.0">
+                    <img src="img/2.png?v=2.0.0">
                 </div>
                 <div>
-                    <img src="img/3.png?v=1.0.0">
+                    <img src="img/3.png?v=2.0.0">
                 </div>
                 <div>
-                    <img src="img/4.png?v=1.0.0">
+                    <img src="img/4.png?v=2.0.0">
                 </div>
             </div>
             <div id="demo-settings" class="row justify-content-center d-none d-lg-flex">