Correct dead link to DOSKEY documentation.

altearius · altearius · commit a2c5ce1c598e · 2018-04-17T20:57:49.000-04:00
diff --git a/docs/optimization.html b/docs/optimization.html
@@ -78,7 +78,7 @@ <h2><a href="#download" name="download">Download</a><span class="sectionMark">&s
 </code></pre>
 
 <p>If on Windows, you may need to type <code>r.js.cmd</code> instead of <code>r.js</code>. Or, you can
-    use <a href="http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/doskey.mspx?mfr=true">DOSKEY</a>:</p>
+    use <a href="https://docs.microsoft.com/en-us/windows-server/administration/windows-commands/doskey">DOSKEY</a>:</p>
 
 <pre><code>DOSKEY r.js=r.js.cmd $*</code></pre>
 
