Move paris 2020 to past events

Author: Florent Biville

_data/events.yml

@@ -1,9 +1,8 @@
-upcoming:
+upcoming: []
+past:
   - name: Paris 2020
     url: https://paris2020.hack-commit-pu.sh/
     img: hcp-paris-2020.png
-
-past:
   - name: Paris 2019
     url: https://paris2019.hack-commit-pu.sh/
     img: hcp-paris-2019.png

_includes/upcoming.html

@@ -6,7 +6,13 @@
 					<h2 class="section-heading">Upcoming events</h2>
 					<hr class="light">
 				</div>
+                {% if site.data.events.upcoming.size == 0 %}
+                <div class="grid_item col-12 no-events">
+                    <p>Follow our <a rel="noopener" target="_blank" class="page-scroll" href="https://twitter.com/{{site.twitter_username}}">Twitter account</a> to stay in touch!</p>
+                </div>
+                {% else %}
 				{% include _events.html events=site.data.events.upcoming %}
+                {% endif %}
             </div>
         </div>
     </div>

css/main.scss

@@ -239,6 +239,10 @@ header .header-content {
 	.event {
 		background-color: $theme-primary;
 	}
+
+	.no-events a {
+		text-decoration: underline;
+	}
 }
 
 #past {