added license uri to readme.txt

diff --git a/readme.txt b/readme.txt
index 582bf78..63861e7 100644 (file)
--- a/readme.txt
+++ b/readme.txt
@@ -7,6 +7,7 @@ Requires at least: 3.0.1
 Tested up to: 4.9.6
 Stable tag: 0.1
 License: GPLv2 or later
+License URI: http://www.gnu.org/licenses/gpl-2.0.html
 
 This plugin adds a shortcode that displays a video from <a href="https://asciinema.org">asciinema.org</a>.