minor edits

Author: dabeaz

_layouts/default.html

@@ -41,7 +41,7 @@ <h2 class="project-tagline">A course by David Beazley (<a href="https://dabeaz.c
       <footer class="site-footer">
 <a rel="license" href="http://creativecommons.org/licenses/by-sa/4.0/"><img alt="Creative Commons License" style="border-width:0" src="https://i.creativecommons.org/l/by-sa/4.0/88x31.png" /></a><br />This work is licensed under a <a rel="license" href="http://creativecommons.org/licenses/by-sa/4.0/">Creative Commons Attribution-ShareAlike 4.0 International License</a>.
 <br/>
-Copyright (C) 2007-2023, <a href="https://dabeaz.com">David Beazley</a>.  Come take a <a href="https://dabeaz.com/courses.html">course</a>. 
+Copyright (C) 2007-2023, <a href="https://dabeaz.com">David Beazley</a>.  Come take an <a href="https://dabeaz.com/courses.html">advanced computer science course</a>. 
         {% if site.github.is_project_page %}
           <span class="site-footer-owner">Fork me on <a href="{{ site.github.repository_url }}">GitHub</a></span>
         {% endif %}