add simple cache busting

Author: fritzmg

index/de/index.html

@@ -11,7 +11,7 @@
     <meta name="keywords" content="">
     <meta name="generator" content="Contao Open Source CMS">
     <meta name="viewport" content="width=device-width,initial-scale=1.0">
-    <link rel="stylesheet" href="../static/A.css">
+    <link rel="stylesheet" href="../static/A.css?v=1">
     <link type="text/css" rel="stylesheet" href="../static/network.css">
 </head>
 

index/en/index.html

@@ -11,7 +11,7 @@
     <meta name="keywords" content="">
     <meta name="generator" content="Contao Open Source CMS">
     <meta name="viewport" content="width=device-width,initial-scale=1.0">
-    <link rel="stylesheet" href="../static/A.css">
+    <link rel="stylesheet" href="../static/A.css?v=1">
     <link type="text/css" rel="stylesheet" href="../static/network.css">
 </head>