Adjust /install to merging Debian and Linux scenarios

wiki/src/install.html

@@ -12,7 +12,7 @@
 <h1>Which operating system are you installing Tails from?</h1>
 
 <div class="row">
-  <div class="col-md-6">
+  <div class="col-md-4">
     [[
       <div class="panel panel-primary">
         <div class="panel-body">Windows</div>
@@ -20,7 +20,7 @@
     |install/win]]
   </div>
 
-  <div class="col-md-6">
+  <div class="col-md-4">
     [[
       <div class="panel panel-primary">
         <div class="panel-body">macOS</div>
@@ -28,18 +28,10 @@
     |install/mac]]
   </div>
 
-  <div class="col-md-6">
+  <div class="col-md-4">
     [[
       <div class="panel panel-primary">
-        <div class="panel-body">Debian, Ubuntu, or Mint</div>
-      </div>
-    |install/debian]]
-  </div>
-
-  <div class="col-md-6">
-    [[
-      <div class="panel panel-primary">
-        <div class="panel-body two-lines">Other Linux<br /><small>(Red Hat, Fedora, etc.)</small></div>
+        <div class="panel-body">Linux</div>
       </div>
     |install/linux]]
   </div>