fix: slugify tag on page before adding (closes #411)

Jacky Zhao

2023-08-27 52ca312f41ee6da5202cd9632d8501340ada3a67

 quartz/components/styles/footer.scss

@@ -1,6 +1,7 @@
footer {
  text-align: left;
  margin-bottom: 4rem;
  opacity: 0.7;

  & ul {
    list-style: none;