Readme: Avoid a redirect by using www.php.net

Props josevarghese.
Fixes #61174.


git-svn-id: https://develop.svn.wordpress.org/trunk@58121 602fd350-edb4-49c9-b593-d223f7449a82

Author: aaronjorbin

src/readme.html

@@ -51,13 +51,13 @@ <h2>Migrating from other systems</h2>
 
 <h2>System Requirements</h2>
 <ul>
-	<li><a href="https://secure.php.net/">PHP</a> version <strong>7.2.24</strong> or greater.</li>
+	<li><a href="https://www.php.net/">PHP</a> version <strong>7.2.24</strong> or greater.</li>
 	<li><a href="https://www.mysql.com/">MySQL</a> version <strong>5.5.5</strong> or greater.</li>
 </ul>
 
 <h3>Recommendations</h3>
 <ul>
-	<li><a href="https://secure.php.net/">PHP</a> version <strong>7.4</strong> or greater.</li>
+	<li><a href="https://www.php.net/">PHP</a> version <strong>7.4</strong> or greater.</li>
 	<li><a href="https://www.mysql.com/">MySQL</a> version <strong>8.0</strong> or greater OR <a href="https://mariadb.org/">MariaDB</a> version <strong>10.4</strong> or greater.</li>
 	<li>The <a href="https://httpd.apache.org/docs/2.2/mod/mod_rewrite.html">mod_rewrite</a> Apache module.</li>
 	<li><a href="https://wordpress.org/news/2016/12/moving-toward-ssl/">HTTPS</a> support.</li>