Add doc comment

remix-run · Oct 9, 2015 · 42891a2 · 42891a2
1 parent 8a3ea17
commit 42891a2
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/modules/History.js b/modules/History.js
@@ -1,8 +1,13 @@
 import { history } from './PropTypes'
 
+/**
+ * A mixin that adds the "history" instance variable to components.
+ */
 const History = {
 
-  contextTypes: { history },
+  contextTypes: {
+    history
+  },
 
   componentWillMount() {
     this.history = this.context.history