chore: added layouts

_layouts/category.html

@@ -0,0 +1,24 @@
+---
+layout: page
+# The Category layout
+---
+
+{% include lang.html %}
+
+<div id="page-category" class="mb-5">
+  <h1 class="ps-lg-2">
+    <i class="far fa-folder-open fa-fw text-muted"></i>
+    {{ page.title }}
+    <span class="lead text-muted ps-2">{{ page.posts | size }}</span>
+  </h1>
+
+  <ul class="post-content ps-0">
+    {% for post in page.posts %}
+      <li class="d-flex justify-content-between px-md-3">
+        <a href="{{ post.url | relative_url }}">{{ post.title }}</a>
+        <span class="dash flex-grow-1"></span>
+        {% include datetime.html date=post.date wrap='span' class='text-muted small' lang=lang %}
+      </li>
+    {% endfor %}
+  </ul>
+</div>