add XCB library to users

diff --git a/doc/ikiwikiusers.mdwn b/doc/ikiwikiusers.mdwn
index f6ab34653987ed5912105d5ae5997eafc9687013..eb998851ac4bcc791606a2f4c26c42a35fadf273 100644 (file)
--- a/doc/ikiwikiusers.mdwn
+++ b/doc/ikiwikiusers.mdwn
@@ -47,6 +47,7 @@ Projects & Organizations
 * [Bosco Free Orienteering Software](http://bosco.durcheinandertal.ch)
 * [MIT Student Information Processing Board](http://sipb.mit.edu/)
 * [Tinc VPN](http://tinc-vpn.org/)
+* [The XCB library](http://xcb.freedesktop.org/)
 
 Personal sites and blogs
 ========================