replace disqus with utteranc.es, update year

Author: yzh119

_config.yml

@@ -53,5 +53,3 @@ plugins:
 #   - vendor/ruby/
 
 markdown: kramdown
-disqus:
-  shortname: flashinfer-ai

_includes/footer.html

@@ -7,7 +7,7 @@ <h2 class="footer-heading"><img src="/assets/imgs/FlashInfer-white-background.pn
 
     <div class="footer-col-wrapper">
       <div class="footer-col footer-col-1">
-        <p> Copyright © 2023-2024, FlashInfer team</p>
+        <p> Copyright © 2023-2025, FlashInfer team</p>
       </div>
 
       <div class="footer-col footer-col-2">

_layouts/post.html

@@ -19,9 +19,18 @@ <h1 class="post-title p-name" itemprop="name headline">{{ page.title | escape }}
     {{ content }}
   </div>
 
-  {%- if site.disqus.shortname -%}
-    {%- include disqus_comments.html -%}
-  {%- endif -%}
+  <!-- Your blog post content here -->
+  <div id="comments">
+    <h2>Comments</h2>
+    <script src="https://utteranc.es/client.js"
+            repo="flashinfer-ai/flashinfer-ai.github.io"
+            issue-term="pathname"
+            theme="github-light"
+            crossorigin="anonymous"
+            async>
+    </script>
+  </div>
+
 
   <a class="u-url" href="{{ page.url | relative_url }}" hidden></a>
 </article>