Can’t access About page from blog homepage

I wanted my blog’s homepage to be mydomain.net instead of mydomain.net/wordpress, so I created an index.php file with this code in the root directory:

<?php
header( ‘Location: https://www.mydomain.net/blog&#8217; ) ;
?>

That worked fine, but now I can’t access my static About page from the homepage. Any ideas? Thank you.