Bump WP compat

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: 4.5
+Tested up to: 4.6
 Stable tag: 0.5
 License: GPLv2 or later
 License URI: http://www.gnu.org/licenses/gpl-2.0.html
@@ -38,4 +38,4 @@ No, shortlinks use the posts' IDs, so aren't available for modification.
 * Translation support
 
 = 0.4 =
-* Initial release
\ No newline at end of file
+* Initial release