little fixes

_layouts/default.html

@@ -29,7 +29,7 @@
           <nav>
             <a href="{{ site.baseurl }}/">Blog</a>
             <a href="{{ site.baseurl }}/tags">Tags</a>
-            <!-- <a href="{{ site.baseurl }}/categories">Posts by categories</a> -->
+            <a href="{{ site.baseurl }}/categories">Categories</a>
             <a href="{{ site.baseurl }}/about">About</a>
           </nav>
         </header>

_posts/2020-4-4-Alive-again.md

@@ -6,6 +6,6 @@ post_date: 2020-04-04 08:00:00
 categories: [announcements, new_blog]
 ---
 
-#Hello! I'm back!
+### Hello! I'm back!
 
 Decided to return to blogging. As you can see I have new layout (also decided to go with more minimalist approach). While I may not be better writer as I almost didn't write since last post, I surely have a bit more things to say. Stay tuned!

categories.html

@@ -0,0 +1,13 @@
+---
+layout: page
+title: Posts by categories
+permalink: /categories/
+---
+{% for category in site.categories %}
+<h3>{{ category[0] }}</h3>
+    <ul>
+            {% for post in category[1] %}
+                <li><a href="{{ site.baseurl }}{{ post.url }}">{{ post.title }}</a></li>
+            {% endfor %}
+    </ul>
+{% endfor %}

categories.md

@@ -1,12 +0,0 @@
----
-layout: page
-title: Posts by categories
-permalink: /categories/
----
-{% for category in site.categories %}
-    *{{ category[0] }}
-    
-        {% for post in category[1] %}
-            ⋅⋅*[{{ post.title }}]({{ post.url }}
-        {% endfor %}
-{% endfor %}