Change the encoding of the Japanese docs to UTF-8

w3m-doc/sample/sample.wd

@@ -1,10 +1,10 @@
 @include html.wd
 @define
 hsaka.url	http://www2u.biglobe.ne.jp/~hsaka/
-hsaka.title	<EFBFBD><EFBFBD><EFBFBD>ܹ<EFBFBD>§<EFBFBD>Υۡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڡ<EFBFBD><EFBFBD><EFBFBD>
+hsaka.title	坂本浩則のホームページ
 @end
 
-<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϥ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ץ<EFBFBD><EFBFBD>Ǥ<EFBFBD><EFBFBD><EFBFBD>
+これはサンプルです。
 <P>
 \@hsaka.url\@ = @hsaka.url@
 <BR>