Improve the copyrights of the assets

404.html

@@ -1,14 +1,9 @@
 ---
-# The 404 page
-# v2.0
-# https://github.com/cotes2020/jekyll-theme-chirpy
-# © 2017-2019 Cotes Chung
-# MIT License
 layout: page
 title: "404: Page not found"
 permalink: /404.html
 
-redirect_from:  # part of site.sitemap_exclude
+redirect_from:
   - /norobots/
   - /assets/
   - /tabs/
@@ -22,4 +17,4 @@ dynamic_title: true
 <div class="lead">
   <p>Sorry, we've misplaced that URL or it's pointing to something that doesn't exist. </p>
   <p><a href="{{ site.baseurl }}/">Head back Home</a> to try finding it again, or search for it on the <a href="{{ site.baseurl }}/tabs/archives">Archives page</a>.</p>
-</div>
+</div>