update README

Louis Bettens · Louis Bettens · commit 20b19de1028f · 2023-04-05T11:32:09.000+02:00
diff --git a/README.md b/README.md
@@ -2,3 +2,5 @@
 <a href="http://www.wtfpl.net/"><img
        src="http://www.wtfpl.net/wp-content/uploads/2012/12/wtfpl-badge-2.png"
        width="80" height="15" alt="WTFPL" /></a>
+
+`docker run ghcr.io/polygl0ts/ctf.docker`
