Add note to lang.txt on where set element should be used.

docs/Changelog

@@ -11,7 +11,8 @@ pisg (x.xx)
    * Fix really old bug with foulwords - was only applying the wordbreak settings
      to the first and last words in the list of foulwords.  Now applies it to
      each word.
-
+   * Add note to lang.txt that the <set lang=""> line should be inserted into
+     the configuration file. Some users were confused about this.
 
 pisg (0.46) - Tue Feb, 11th 2003
    * Fix serious bug which caused garbled output i "Latest topics" and other

lang.txt

@@ -1,6 +1,9 @@
-# In order to use a translation, you must set 'lang', eg.:
+# In order to use a specific translation, you must set 'lang' in the pisg
+# configuration file, e.g.:
 #
-# <set lang="DK"> - to get a Danish translated page.
+# <set lang="DK">
+#
+# To get a Danish translated page.
 #
 # Translations in this file as of now:
 #