Update project-list.html

_includes/project-list.html

 <div id="wrapper">
 <div class="container">
 	<div class="row">
-	        {% increment limit %}
+			{% assign i = 0 %}
 			{% assign sorted_projects = (site.projects | sort: 'date') %}
 			{% for project in sorted_projects reversed %}
-			    {% if limit < 12 %}
-			    {% increment limit %}
+			    {% if i < 12 %}
+			    {% assign i = i | plus:1 %}
 			    	<div class="pin">
 			    	  <p>
 			    		{% if project.image != "/assets/default-social-image.png" %}