[guadec-web/oscp-2019] Fix typo on dates

[Tom Tryfonidis <tomtryf src gnome org>]

commit a6fdacb3edbdebca8b2625a49d71b8d894139b9a
Author: Tom Tryfonidis <tomtryf gmail com>
Date:   Fri Sep 28 19:28:38 2018 +0300

    Fix typo on dates

 pelicanconf.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/pelicanconf.py b/pelicanconf.py
index 97f91f5..a14f45d 100644
--- a/pelicanconf.py
+++ b/pelicanconf.py
@@ -33,7 +33,7 @@ SITEDOMAIN = 'localhost'
 SITEURL = 'http://%s:8000' % SITEDOMAIN
 
 GUADEC_LOCATION = "Thessaloniki, Greece"
-GUADEC_DATES = "August 23<sup>th</sup> - 28<sup>th</sup>"
+GUADEC_DATES = "August 23<sup>rd</sup> - 28<sup>th</sup>"
 OPEN_REGISTRATION = False
 
 # Menu links