Merge branch 'bump-wp-compat' into 'master'

Bump WP compat

See merge request !10

README.md

@@ -3,7 +3,7 @@
 **Donate link:** https://ethitter.com/donate/  
 **Tags:** seo, meta tags  
 **Requires at least:** 4.4  
-**Tested up to:** 5.7  
+**Tested up to:** 5.9  
 **Stable tag:** 0.6  
 **License:** GPLv2 or later  
 **License URI:** http://www.gnu.org/licenses/gpl-2.0.html  

readme.txt

@@ -3,7 +3,7 @@ Contributors: ethitter
 Donate link: https://ethitter.com/donate/
 Tags: seo, meta tags
 Requires at least: 4.4
-Tested up to: 5.7
+Tested up to: 5.9
 Stable tag: 0.6
 License: GPLv2 or later
 License URI: http://www.gnu.org/licenses/gpl-2.0.html