Improve sections

assets/anchors.js

@@ -0,0 +1,11 @@
+(function () {
+    document.querySelectorAll('.content h1, .content h2, .content h3, .content h4, .content h5, .content h6').forEach(function (h) {
+        if (!h.id) return;
+        var a = document.createElement('a');
+        a.href = '#' + h.id;
+        a.className = 'heading-anchor';
+        a.setAttribute('aria-label', 'Link to this section');
+        a.textContent = '§';
+        h.insertBefore(a, h.firstChild);
+    });
+}());