update projects.md to use liquid extension.

Al-folio since v.0.12.0 used .liquid extension and not .html

Author: nicholasphair

_pages/projects.md

@@ -19,14 +19,14 @@ horizontal: false
         <div class="container">
           <div class="row row-cols-2">
           {% for project in sorted_projects %}
-            {% include projects_horizontal.html %}
+            {% include projects_horizontal.liquid %}
           {% endfor %}
           </div>
         </div>
       {% else %}
         <div class="grid">
           {% for project in sorted_projects %}
-            {% include projects.html %}
+            {% include projects.liquid %}
           {% endfor %}
         </div>
       {% endif %}
@@ -40,14 +40,14 @@ horizontal: false
       <div class="container">
         <div class="row row-cols-2">
         {% for project in sorted_projects %}
-          {% include projects_hrz.html %}
+          {% include projects_horizontal.liquid %}
         {% endfor %}
         </div>
       </div>
     {% else %}
       <div class="grid">
         {% for project in sorted_projects %}
-          {% include projects.html %}
+          {% include projects.liquid %}
         {% endfor %}
       </div>
     {% endif %}