docs: Update showcase.md (#1031)

Xinyang Yu

2024-03-24 85a737b4ee72fb4dba12e1aacbd87d1636cfc30e

 quartz/components/PageList.tsx

@@ -63,7 +63,7 @@
                      class="internal tag-link"
                      href={resolveRelative(fileData.slug!, `tags/${tag}` as FullSlug)}
                    >
                      #{tag}
                      {tag}
                    </a>
                  </li>
                ))}