[happybirthdaygnome-web] add video of talk about gnome history to the timeline

[Matthias Clasen <matthiasc src gnome org>]

commit 59e7c1d69674c073e66936fe746a77330c21c443
Author: Julian Sparber <julian sparber net>
Date:   Tue Aug 15 00:55:19 2017 +0200

    add video of talk about gnome history to the timeline

 index.html |   19 ++++++++++++-------
 1 files changed, 12 insertions(+), 7 deletions(-)
---
diff --git a/index.html b/index.html
index e4d78d4..1b35f61 100644
--- a/index.html
+++ b/index.html
@@ -163,13 +163,18 @@
                                         <h3>GNOME Turns 20</h3>
                                     </div>
                                     <div class="body">
-                                        <p>This year marks GNOME’s 20th anniversary. Users and developers 
flew out from around the world to attend GUADEC and have an early birthday party for GNOME.</p>
-                                       <div class="col-xs-6 thumbnail">
-                                           <a data-gallery="Happy Birthday GNOME" data-toggle="lightbox" 
href="./images/birthday_photos/20th-anniversary-1.jpg"><img 
src="./images/birthday_photos/20th-anniversary-1.jpg" alt="Federico Mena-Quintero is getting ready to cut the 
birthday cake"></a>
-                                       </div>
-                                       <div class="col-xs-6 thumbnail">
-                                           <a data-gallery="Happy Birthday GNOME" data-toggle="lightbox" 
href="./images/birthday_photos/20th-anniversary-2.jpg"><img 
src="./images/birthday_photos/20th-anniversary-2.jpg" alt="People at GNOME’s 20th anniversary party"></a>
-                                       </div>
+                                        <p>This year marks GNOME’s 20th anniversary. Users and developers 
flew out from around the world to attend GUADEC and have an early birthday party for GNOME, and Jonathan 
Blandford gave a keynote on GNOME's past 20 years.</p>
+                            <div class="col-xs-6 thumbnail">
+                               <a data-gallery="Happy Birthday GNOME" data-toggle="lightbox" 
href="./images/birthday_photos/20th-anniversary-1.jpg"><img 
src="./images/birthday_photos/20th-anniversary-1.jpg" alt="Federico Mena-Quintero is getting ready to cut the 
birthday cake"></a>
+                            </div>
+                            <div class="col-xs-6 thumbnail">
+                               <a data-gallery="Happy Birthday GNOME" data-toggle="lightbox" 
href="./images/birthday_photos/20th-anniversary-2.jpg"><img 
src="./images/birthday_photos/20th-anniversary-2.jpg" alt="People at GNOME’s 20th anniversary party"></a>
+                            </div>
+                            <div class="col-xs-12 thumbnail">
+                              <div class="embed-responsive embed-responsive-16by9">
+                                <iframe class="embed-responsive-item" 
src="https://www.youtube.com/embed/i_5qm4FE4KM";></iframe>
+                              </div>
+                            </div>
                                     </div>
                                 </div>
                                 <div class="entry">