Align 'What is BitTorrent?' to the left on RTL languages (Will-close: #15394)

wiki/src/install/inc/stylesheets/download.css

@@ -136,8 +136,9 @@ span.step-number {
 .what-is-bittorrent-link {
   position: absolute;
   top: 2.4em;
-  right: 1em;
 }
+html[dir="ltr"] .what-is-bittorrent-link { right: 1em; }
+html[dir="rtl"] .what-is-bittorrent-link { left: 1em; }
 
 #already-downloaded {
   margin-top: 0.5em;