fix: add margin on h2

src/blog_assets/css/index.scss

@@ -103,6 +103,7 @@ main {
 
   li {
     line-height: 17px;
+    margin-bottom: 1rem;
 
     a {
       font-weight: bold;
@@ -114,6 +115,9 @@ main {
       }
     }
   }
+  li:last-child {
+    margin-bottom: 0;
+  }
 }
 
 .table-of-contents > ul ul {
@@ -128,6 +132,10 @@ main {
   }
 }
 
+.table-of-contents > ul ul li+li {
+
+}
+
 .table-of-contents > ul ul li+li,
 .table-of-contents > ul ul li:first-child {
   margin-bottom: .5rem;