Add missing link to meta topic in README (#54)

Add missing link to meta topic in README (#54)

diff --git a/README.md b/README.md
index 8b989b2..c36980e 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,7 @@
 # discourse-spoiler-alert
 
+https://meta.discourse.org/t/discourse-spoiler-alert/12650/
+
 Spoiler plugin for [Discourse](http://discourse.org) highly inspired by the [spoiler-alert](http://joshbuddy.github.io/spoiler-alert/) jQuery plugin.
 
 ## Usage

GitHub sha: 15bec92d

This commit appears in #54 which was approved by CvX. It was merged by CvX.