fix: cjk support + demo page

data/config.yaml

@@ -6,7 +6,7 @@ description:
   Host your second brain and digital garden for free. Quartz features extremely fast full-text search,
   Wikilink support, backlinks, local graph, tags, and link previews.
 page_title:
-  "🪴 Quartz .2"
+  "🪴 Quartz 3.2"
 links:
   - link_name: Twitter
     link: https://twitter.com/_jzhao