Update userguide and welcome documentation with the latest additions and translations from i18n.haiku-os.org.

docs/userguide/jp/attributes.html

@@ -39,12 +39,14 @@
 <li><a href="../uk/attributes.html"><img src="../images/flags/uk.png" alt="" />Українська</a></li>
 <li><a href="../zh_CN/attributes.html"><img src="../images/flags/zh_CN.png" alt="" /> 中文 ［中文］</a></li>
 <li><a href="../pt_PT/attributes.html"><img src="../images/flags/pt_PT.png" alt="" />Português</a></li>
+<li><a href="../fi/attributes.html"><img src="../images/flags/fi.png" alt="" />Suomi</a></li>
+<li><a href="../sk/attributes.html"><img src="../images/flags/sk.png" alt="" />Slovenčina</a></li>
 <li><a href="../en/attributes.html"><img src="../images/flags/gb.png" alt="" />English</a></li>
 </ul>
 <span>
  «  <a href="filetypes.html">Filetypes</a> 
 ::  <a href="contents.html" class="uplink">目次</a> 
-::  <a href="index.html">目次</a>  »
+::  <a href="index.html">インデックス</a>  »
 </span></div>
 </div>
 
@@ -164,7 +166,7 @@ Clara Botters : string : Whelton</pre>
 <div class="inner"><span>
  «  <a href="filetypes.html">Filetypes</a> 
 ::  <a href="contents.html" class="uplink">目次</a> 
-::  <a href="index.html">目次</a>  »
+::  <a href="index.html">インデックス</a>  »
 </span></div>
 </div>