fix the margin of the main page

Author: sumn2u

_layouts/website/languages.html

@@ -52,7 +52,7 @@
           </g>
         </svg>
         <hr>
-        <h3>{{ "LANGS_CHOOSE"|t }}</h3>
+        <h3 style="text-align: center; margin: revert;">{{ "LANGS_CHOOSE"|t }}</h3>
 
         <ul class="languages">
         {%  for lang in languages.list %}