fix(docs): No 'original_id' field found & The 'id' field missing the expected 'version-XX-' prefix (react-navigation#408)

No 'original_id' field found in version-3.x/navigation-views.md and version-3.x/transitioner.md ;
The 'id' field missing the expected 'version-XX-' prefix in version-3.x/navigation-views.md and
version-3.x/transitioner.md

Author: 石小泉

website/versioned_docs/version-3.x/navigation-views.md

@@ -1,7 +1,8 @@
 ---
-id: navigation-views
+id: version-3.x-navigation-views
 title: Navigation views
 sidebar_label: Navigation views
+original_id: navigation-views
 ---
 
 Navigation views are presentation components that take a [`router`](routers.html) and a [`navigation`](navigation-prop.html) prop, and can display several screens, as specified by the `navigation.state`.

website/versioned_docs/version-3.x/transitioner.md

@@ -1,5 +1,6 @@
 ---
-id: transitioner
+id: version-3.x-transitioner
+original_id: transitioner
 title: Transitioner
 sidebar_label: Transitioner
 ---