feat(menu): content rendering with md files in menu

_data/menu.yml

@@ -1,7 +1,6 @@
 entries:
   - title: about
-    content: |
-      <p> Lorem.</p>
+    content_file: about.md
 
   - title: all posts
     post_list: true

_includes/menu.html

@@ -1,7 +1,15 @@
 {%- for item in include.collection -%}
   <section>
     <h2 class="section-title">// {{ item.title }} //</h2>
-    {%- if item.content -%}{{ item.content }}{%- endif -%}
+    {%- if item.content_file -%}
+      {%- assign _menu_page = site.pages
+        | where: 'path', item.content_file
+        | first
+      -%}
+      {{ _menu_page.content | markdownify }}
+    {%- elsif item.content -%}
+      {{ item.content }}
+    {%- endif -%}
   </section>
   {%- if item.post_list -%}{%- include post_list.html -%}{%- endif -%}
   {%- if item.entries -%}

about.md

@@ -0,0 +1,6 @@
+---
+---
+
+a minimal, monochrome dark jekyll theme for writers and developers who prefer simplicity over noise.
+
+configure your menu in `_data/menu.yml`, write posts in `_posts/` — that's it.