MAGETWO-92741: Broken doc link

Author: Bruce Denham

app/code/Magento/PageBuilder/docs/README.md

@@ -37,6 +37,7 @@ It replaces the default WYSIWYG Editor in the Admin area with a highly configura
 [Content type configuration]: content-type-configuration.md
 [How to add a new content type]: how-to-add-new-content-type.md
 [Events]: events.md
+[Bindings]: bindings.md
 [Master format]: master-format.md
 [Visual select]: visual-select.md
 [Custom Toolbar]: toolbar.md