Make event button text variable - add event_button_label

Author: allcreatures

_includes/home-news-bar.html

@@ -46,7 +46,9 @@ <h4>{{ post.title }}</h4>
                                 {% elsif post.categories contains 'blog' %}Read Blog
                                 {% elsif post.categories contains 'presentation' %}View Presentation
                                 {% elsif post.categories contains 'video' %}Watch Video
-                                {% elsif post.categories contains 'event' %}Join Virtual Meetup
+                                {% elsif post.categories contains 'event' %}
+                                    {% if post.event_button_label != '' %}{{ post.event_button_label }}
+                                    {% else %}Join Virtual Meetup{% endif%}
                                 {% else %}Read More
                                 {% endif %}
                             </a>