Fix Reconciliation link

Author: gaearon

content/docs/reference-glossary.md

@@ -161,6 +161,6 @@ Handling events with React elements has some syntactic differences:
 * React event handlers are named using camelCase, rather than lowercase.
 * With JSX you pass a function as the event handler, rather than a string.
 
-## [Reconciliation](/reconciliation.html)
+## [Reconciliation](/docs/reconciliation.html)
 
 When a component's props or state change, React decides whether an actual DOM update is necessary by comparing the newly returned element with the previously rendered one. When they are not equal, React will update the DOM. This process is called "reconciliation".