MINOR: patch for minor typo (ressources/resources)

The main stats page says "ressources" (French spelling) rather than
"resources" (English spelling).

One little patch attached (against v1.4.20).

Many thanks,

Adrian
diff --git a/doc/architecture.txt b/doc/architecture.txt
index 991b236..6135f80 100644
--- a/doc/architecture.txt
+++ b/doc/architecture.txt
@@ -506,7 +506,7 @@
 
 
 Since haproxy does not handle SSL, this part will have to be extracted from the
-servers (freeing even more ressources) and installed on the load-balancer
+servers (freeing even more resources) and installed on the load-balancer
 itself. Install haproxy and apache+mod_ssl on the old box which will spread the
 load between the new boxes. Apache will work in SSL reverse-proxy-cache. If the
 application is correctly developped, it might even lower its load. However,