Added link to the JanusGraph meetup slides and audio and removed it from upcoming events.

CTR

Signed-off-by: Oleksandr Porunov <alexandr.porunov@gmail.com>

Author: porunov

_includes/presentations.html

@@ -6,10 +6,11 @@ <h2>Presentations</h2>
                 <hr class="title-line check-calendar">
             </div>
             <ul class="presentations">
+                <li><a href="https://training.experoinc.com/janus-meetup-august7">JanusGraph Online Meetup</a>, Ryan Stauffer, Ted Wilmes, Aaron Ploetz, Becky Nelson, & Rick Paiste - 2019.08.07</li>
                 <li><a href="https://training.experoinc.com/janus-meetup-march27">JanusGraph Online Meetup</a>, Chris Hupman, Ryan Stauffer, Jan Jansen, John Mertic, & Ted Wilmes - 2019.03.27</li>
                 <li><a href="https://www.slideshare.net/ptgoetz/large-scale-graph-analytics-with-janusgraph">DataWorksJun2017: Large Scale Graph Analytics with JanusGraph</a>, P. Taylor Goetz, 2017.06.13</li>
                 <li><a href="https://www.slideshare.net/HBaseCon/communitydriven-graphs-with-janusgraph-77117443">HBaseCon2017 Community-Driven Graphs with JanusGraph</a>, Jing Chen He & Jason Plurad, 2017.06.12</li>
             </ul>
         </div>
     </div>
-</section>
+</section>

_includes/upcoming-features.html

@@ -6,7 +6,6 @@ <h2>Upcoming Events</h2>
                 <hr class="title-line calendar">
             </div>
             <ul class="upcoming-events">
-                <li><a href="https://training.experoinc.com/janus-meetup-august7">JanusGraph Online Community Meetup</a> - August 7, 2019</li>
                 <li><a href="https://datadaytexas.com/2020-graph-summit/news">Global Graph Summit 2020</a> - January 5, 2020</li>
             </ul>
         </div>