Formatting for headers level 4

Author: JJ

assets/sass/style.scss

@@ -512,6 +512,17 @@ table#TOC {
         }
     }
 
+    tr.toc-level-4 {
+        td {
+            padding-top: 2pt;
+            font-size: 0.8em;
+        }
+
+        td.toc-text {
+            padding-left: 16px;
+        }
+    }
+
     td.toc-number {
         display: none;
     }
@@ -612,4 +623,4 @@ a[href*="//"]:not([href*="perl6.org"])::after,
   position: relative;
   overflow: hidden;
   width: 100%;
-}
+}