add journal.html and keep working on organisation page

src/_includes/partials/link_tiles.njk

@@ -3,6 +3,10 @@
         <img src="_assets/img/most_recent.jpg" alt=""/>
         all posts
     </a>
+    <a href="/journal_html/">
+        <img src="_assets/img/journal.jpg" alt=""/>
+        journal.html
+    </a>
     <a href="/blog/">
         <img src="_assets/img/blog.jpg" alt=""/>
         blog

src/_includes/styles.css

@@ -50,6 +50,11 @@ h3 {
   margin-bottom: var(--line-padding);
 }
 
+h4 {
+  margin-top: var(--line-padding);
+  margin-bottom: var(--line-padding);
+}
+
 /* Format links */
 a,
 a:visited {