Fix date for coffee chat

_posts/2019-06-27-issue-14.md

@@ -71,7 +71,7 @@ img: "/img/twitter-card-issue-14.jpg"
 <h3 id="events">Upcoming Events</h3>
 
 <div class="event">
-    <p class="date" markdown="1">July 6, 2019 (Saturday) – 16:00 UTC</p>
+    <p class="date" markdown="1">June 29, 2019 (Saturday) – 16:00 UTC</p>
     <p markdown="1">Monero Coffee Chat - <a href="https://www.youtube.com/channel/UCKxLNPJeEjPXOke55i5AIXA" target="_blank">watch online here</a></p>
 </div>