Fix excerpt in list

Author: codegaze

categories.html

@@ -22,7 +22,9 @@ <h2>{{category.category}}</h2>
       <a href="{{ site.baseurl }}{{ post.url }}" class="posts-grid__link">
         <h3 class="posts-grid__item-title">{{ post.data.title }}</h3>
       </a>
-      <p class="posts-grid__summary">{{ post.content| excerpt }}</p>
+      <p class="posts-grid__summary">
+        {{ post.data.excerpt | default: post.content | excerpt }}
+      </p>
       <div class="posts-grid__meta">
         <time datetime="{{ post.date | date_to_xmlschema }}"
           >{{ post.date | date_to_long_string_locale }}</time

writings.html

@@ -20,7 +20,9 @@ <h2>{{ yearitem.name }}</h2>
         <a href="{{ site.baseurl }}{{ item.url }}" class="posts-grid__link">
           <h3 class="posts-grid__item-title">{{ item.data.title }}</h3>
         </a>
-        <p class="posts-grid__summary">{{ item.content| excerpt }}</p>
+        <p class="posts-grid__summary">
+          {{ item.data.excerpt | default: item.content | excerpt }}
+        </p>
         <div class="posts-grid__meta">
           <time datetime="{{ item.date | date_to_xmlschema }}"
             >{{ item.date | date_to_long_string_locale }}</time