Update author, ad and index layout

Author: 0x-r4bbit

_includes/author.html

@@ -7,3 +7,6 @@
 {% elsif include.author == 'dominic_elm' %}
 Dominic Elm
 {% endif%}
+{% elsif include.author == 'maxim_koretskyi' %}
+Maxim Koretskyi
+{% endif%}

_includes/public-training-ad.html

@@ -2,5 +2,5 @@
   <img width="100" src="/images/angular2-shield-inverse.svg">
   <h3 class="thtrm-section-headline">Angular Master Class in Las Palmas</h3>
   <p class="thtrm-section-text">Join our upcoming public training!</p>
-  <a href="https://www.codecamps.com/aiff4/" title="Angular Master Class in Las Palmas" id="event-cta" class="thtrm-layout-divider-cta">Get a ticket <strong>&rarr;</strong></a>
+  <a href="https://www.codecamps.com/aiff5/" title="Angular Master Class in Las Palmas" id="event-cta" class="thtrm-layout-divider-cta">Get a ticket <strong>&rarr;</strong></a>
 </section>

_layouts/post.html

@@ -89,8 +89,6 @@ <h2 class="thtrm-banner-text">{{page.title}}</h2>
           {{ content }}
 
           {% include demos-and-videos.html post=page %}
-        
-          {% include machinelabs-course-ad.html %}
         </div>
 
         {% include newsletter-subscriber.html %}