Fix missing link in history.md

wooorm · wooorm · commit 49453f7ec5ee · 2015-12-21T22:21:00.000+01:00
diff --git a/history.md b/history.md
@@ -5,7 +5,7 @@
 2.3.1 / 2015-12-21
 ==================
 
-*   Fix `package.json` files not loading on mdast(1) (1ef6e05)
+*   Fix `package.json` files not loading on mdast(1) ([1ef6e05](https://github.com/wooorm/mdast/commit/1ef6e05))
 
 2.3.0 / 2015-12-01
 ==================
