ovsconf 2024: Add hotel registration link.

Signed-off-by: Aaron Conole <aconole@redhat.com>

Author: apconole

support/ovscon2024/index.html

@@ -15,6 +15,10 @@
     text, over video and audio, and live with the presenters.  Each talk will
     be given once.
 </p>
+<p>
+    The in-person location for the conference this year will be at the
+    Hotel Grandior (<a href="https://www.hotel-grandior.cz">here</a>) in Prague, CZ.
+</p>
 
 <h2>How to propose a Talk</h2>
 
@@ -99,6 +103,9 @@ <h2>How to attend</h2>
     Registration will be required to attend.  See the event brite page
     to <a href="https://www.eventbrite.com/e/ovsovn-2024-fall-conference-tickets-970435407427">register</a>.
 </p>
+<p>
+    To book at the Hotel Grandior, please use <a href="https://www.hotel-grandior.cz/en/reservations/?date_in=2024-11-20&date_out=2024-11-22&promo_code=OVN2024">this link</a> or use the promo code <b>OVN2024</b> when booking.
+</p>
 
 <h2>More information</h2>