refactor: migrate to /blog subdirectory

src/_components/articlesList.njk

@@ -1,25 +1,25 @@
 <div class="post-list">
-{% for post in postslist | reverse %}
+{% for article in articlesList | reverse %}
   <article class="post-list-item">
       <header class="post-list-header">
         <h2>
-          <a href="{{ post.url }}" class="post-list-link">{% if post.data.title %}{{ post.data.title }}{% else %}<code>{{ post.url }}</code>{% endif %}</a>
+          <a href="{{ article.url }}" class="post-list-link">{% if article.data.title %}{{ article.data.title }}{% else %}<code>{{ article.url }}</code>{% endif %}</a>
         </h2>
         <div class="post-metadata">
           <div>
-            Le <time datetime="{{ post.data.date | htmlDateString }}">{{ post.data.date | readableDate }}</time> {{ post.data.authors | readableAuthors }}
+            Le <time datetime="{{ article.data.date | htmlDateString }}">{{ article.data.date | readableDate }}</time> {{ article.data.authors | readableAuthors }}
           </div>
           <ul >
-            {%- for tag in post.data.tags | filterTagList %}
+            {%- for tag in article.data.tags | filterTagList %}
               {%- set tagUrl %}/tags/{{ tag | slugify }}/{% endset %}
               <li><a href="{{ tagUrl }}" class="post-tag">#{{ tag }}</a>{%- if not loop.last %} {% endif %}</li>
             {%- endfor %}
           </ul>
         </div>
       </header>
-      <p>{{ post.data.description }}</p>
+      <p>{{ article.data.description }}</p>
     <footer  class="post-list-footer">
-      <a href="{{ post.url }}">Lire la suite</a>
+      <a href="{{ article.url }}">Lire la suite</a>
     </footer>
   </article>
 {% endfor %}