manual.texi clarified language about logo requirement.

Docs/manual.texi:
  clarified language about logo requirement.

Docs/manual.texi

@@ -2482,8 +2482,8 @@ guaranteed.
 There are also many Web pages that use
 @strong{MySQL}. @xref{Users}. Send any additions to this list to
 @email{webmaster@@mysql.com}. We now require that you show a
-@strong{MySQL} logo somewhere to be added (It is okay to have it on a
-``used tools'' page or something similar.)
+@strong{MySQL} logo somewhere if you wish your site to be added.
+(It is okay to have it on a ``used tools'' page or something similar.)
 
 @cindex reporting, errors
 @cindex MySQL mailing lists