Add SV. osm-codes/SV#1

Author: 0e1

index.html

@@ -103,6 +103,7 @@ <h2>Options</h2>
       <option value="BR">BR - Brazil</option>
       <option value="CM">CM - Cameroon</option>
       <option value="CO">CO - Colombia</option>
+      <option value="SV">SV - El Salvador</option>
       <option value="UY">UY - Uruguay</option>
     </select> &nbsp; <span id="sel_jurL2"></span> &nbsp; <span id="sel_jurL3"></span>
   </li>