[wwwdocs] Add 3 extra PGP keys to mirrors.html

[wwwdocs] Add 3 extra PGP keys to mirrors.html

[Jakub Jelinek]

Hi!

I've committed the following change, so that our keys are listed
in gcc.gnu.org/mirrors.html.  Joseph/Richard, if you use other keys as well,
please update it, I've just downloaded random 4.3.3 and 4.3.2 *.sig files
from ftp.gnu.org and looked at what keys they are using.

--- htdocs/mirrors.html	29 Mar 2009 18:45:23 -0000	1.192
+++ htdocs/mirrors.html	24 Apr 2009 11:11:52 -0000
@@ -23,6 +23,12 @@ Key fingerprint = B215 C163 3BCA 0477 61
 Key fingerprint = B3C4 2148 A44E 6983 B3E4  CC07 93FA 9B1A B75C 61B8
 1024D/902C9419 2004-12-06 Gabriel Dos Reis <gdr@acm.org>
 Key fingerprint = 90AA 4704 69D3 965A 87A5  DCB4 94D0 3953 902C 9419
+1024D/F71EDF1C 2000-02-13 Joseph Samuel Myers <jsm@polyomino.org.uk>
+Key fingerprint = 80F9 8B2E 0DAB 6C82 81BD  F541 A7C8 C3B2 F71E DF1C
+2048R/FC26A641 2005-09-13 Richard Guenther <richard.guenther@gmail.com>
+Key fingerprint = 7F74 F97C 1034 68EE 5D75  0B58 3AB0 0996 FC26 A641
+1024D/C3C45C06 2004-04-21 Jakub Jelinek <jakub@redhat.com>
+Key fingerprint = 33C2 35A3 4C46 AA3F FB29  3709 A328 C3A2 C3C4 5C06
 </pre>
 
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	Jakub