fix indentation

static/js/table-of-contents.js

@@ -1,42 +1,42 @@
 function elementInToC(entry) {
-    return document.querySelector(`#TableOfContents ul li a[href="#${entry.target.getAttribute('id')}"]`);
+  return document.querySelector(`#TableOfContents ul li a[href="#${entry.target.getAttribute('id')}"]`);
 }
 
 window.addEventListener('DOMContentLoaded', () => {
-    var previousActive = null;
+  var previousActive = null;
 
-    const observer = new IntersectionObserver(entries => {
-        var foundActive = false;
-        entries.forEach(entry => {
-            if (!foundActive && entry.isIntersecting) {
-                if(previousActive) {
-                    previousActive.classList.remove('active');
-                }
-                elementInToC(entry).classList.add('active');
-                foundActive = true;
-                previousActive = elementInToC(entry);
-            }
-            else {
-                elementInToC(entry).classList.remove('active');
-            }
-        })
+  const observer = new IntersectionObserver(entries => {
+    var foundActive = false;
+    entries.forEach(entry => {
+      if (!foundActive && entry.isIntersecting) {
+        if (previousActive) {
+          previousActive.classList.remove('active');
+        }
+        elementInToC(entry).classList.add('active');
+        foundActive = true;
+        previousActive = elementInToC(entry);
+      }
+      else {
+        elementInToC(entry).classList.remove('active');
+      }
+    })
 
-        if (!foundActive) {
-            previousActive.classList.add('active');
-        };
-    });
+    if (!foundActive) {
+      previousActive.classList.add('active');
+    };
+  });
 
-    // Track all headers that have an `id` applied
-    document.querySelectorAll('article h3[id], article h2[id]').forEach((section) => {
-        observer.observe(section);
-    });
+  // Track all headers that have an `id` applied
+  document.querySelectorAll('article h3[id], article h2[id]').forEach((section) => {
+    observer.observe(section);
+  });
 });
 
 // Post title doesn't get parsed as it is not part of the content file
 (function addPostTitle2ToC() {
-	var toc = document.getElementById('TableOfContents');
-	if (!toc) return;
-	var title = document.getElementById("post__title").innerText;
-	var ul = toc.querySelector('ul');
-	ul.outerHTML = `<ul><li><a href="#post__title" class="active">${title}</a>${ul.outerHTML}</li></ul>`;
+  var toc = document.getElementById('TableOfContents');
+  if (!toc) return;
+  var title = document.getElementById("post__title").innerText;
+  var ul = toc.querySelector('ul');
+  ul.outerHTML = `<ul><li><a href="#post__title" class="active">${title}</a>${ul.outerHTML}</li></ul>`;
 })();