Updated WordPress compatibility

Author: dartiss

readme.txt

@@ -3,8 +3,8 @@ Contributors: dartiss
 Donate link: https://artiss.blog/donate
 Tags: code, embed, html, javascript, script
 Requires at least: 4.6
-Tested up to: 6.1
-Requires PHP: 5.3
+Tested up to: 6.3
+Requires PHP: 7.4
 Stable tag: 2.3.4
 License: GPLv2 or later
 License URI: http://www.gnu.org/licenses/gpl-2.0.html