fixed "add me" on meal view page

templates/view_meal.html

@@ -49,7 +49,7 @@
 				<span class="username">{{ eater }}</span>
 			</div>
 			{% endfor %}
-				{% if not current_user.name in eaters and current_user.name != meal.kuk %}
+				{% if not current_user.name in meal.eaters and current_user.name != meal.kuk %}
 				<div class="flex-card" style="background: none; box-shadow: none">
 					<div class="round-button" onclick="location.href='/addme?meal={{meal.id}}';"><i class="fa fa-plus" aria-hidden="true"></i></div>
 					<span>Add me</span>