Link to 4th edition NoStarch site

Author: marijnh

html/index.html

@@ -22,7 +22,7 @@
 <div id=cover>
 
   <p style="margin: 1em 0">
-    <a href="https://nostarch.com/ejs3">
+    <a href="https://nostarch.com/eloquent-javascript-4th-edition">
       <img src="img/cover.jpg" alt="Cover image" style="border: 1px solid black; max-width: 100%; box-shadow: 4px 4px 7px rgba(0, 0, 0, 0.4)">
     </a>
   </p>
@@ -31,7 +31,7 @@ <h1>Eloquent JavaScript<div style="font-size: 70%">4th edition (2024)</div></h2>
 
   <p>This is a book about JavaScript, programming, and the wonders of
   the digital. You can read it online here, or buy your own
-  <a href="https://nostarch.com/ejs3">paperback copy</a> (3rd edition).</p>
+  <a href="https://nostarch.com/eloquent-javascript-4th-edition">paperback copy</a>.</p>
 
   <p>Written by Marijn Haverbeke.</p>
 
@@ -98,7 +98,7 @@ <h3>(Part 3: Node)</h3>
 
   <p>A paper version of Eloquent JavaScript, including an additional
   chapter, is being brought out
-  by <a href="http://www.nostarch.com/ejs3">No Starch Press</a>.</p>
+  by <a href="https://nostarch.com/eloquent-javascript-4th-edition">No Starch Press</a>.</p>
 
   <h2>Other pages</h2>