link to new 2.3.0 video

doc/man/index.html

@@ -22,7 +22,7 @@
    <a href="html/index.html">doxygen</a>
    <a href="https://drone.dsscaw.com:4443/dankamongmen/notcurses/">drone</a>
    <a href="https://repology.org/project/notcurses/versions">repology</a>
-   <a href="https://www.youtube.com/watch?v=cYhZ7myXyyg">video</a>
+   <a href="https://www.youtube.com/watch?v=dcjkezf1ARY">video</a>
   </div>
   <div style="text-align:center;font-size:medium;">
     <a href="https://github.com/dankamongmen/notcurses/blob/master/USAGE.md">USAGE</a>
@@ -32,7 +32,7 @@
     <a href="https://github.com/dankamongmen/notcurses/blob/master/doc/HACKING.md">HACKING</a>
   </div>
   <hr>
-  <iframe align="right" width="560" height="315" src="https://www.youtube.com/embed/cYhZ7myXyyg" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+  <iframe align="right" width="560" height="315" src="https://www.youtube.com/embed/dcjkezf1ARY" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
   <h2><a href="https://nick-black.com/dankwiki/index.php/Notcurses">notcurses</a> manual pages (<a href="https://github.com/dankamongmen/notcurses/releases/tag/v2.3.0">v2.3.0</a>)</h2>
   <a href="notcurses.3.html">notcurses(3)</a>—a blingful TUI library<br/>
   <h3>Executables (section 1)</h3>