fix for broken boilerplate link

[Brian Gough]

added missing / before @/bolierplate-source.html

Index: maintain.texi
===================================================================
RCS file: /sources/gnustandards/gnustandards/maintain.texi,v
retrieving revision 1.187
diff -U 5 -w -r1.187 maintain.texi
--- maintain.texi       19 May 2010 00:28:49 -0000      1.187
+++ maintain.texi       26 May 2010 08:58:36 -0000
@@ -1667,11 +1667,11 @@
 on information rather than flashy eye candy, and to keep the site
 simple and uniform.
 
 We encourage you to use the standard @code{www.gnu.org} template as
 the basis for your pages:
address@hidden://www.gnu.org/server/@/standards@/boilerplate-source.html}.
address@hidden://www.gnu.org/server/@/standards/@/boilerplate-source.html}.
 
 Some GNU packages have just simple web pages, but the more information
 you provide, the better.  So please write as much as you usefully can,
 and put all of it on @code{www.gnu.org}.  However, pages that access
 databases (including mail archives and bug tracking) are an exception;