Update en.json

Author: brentvatne

website/i18n/en.json

@@ -55,6 +55,8 @@
     "Know when a screen is focused and blurred": "Know when a screen is focused and blurred",
     "modal": "Opening a full-screen modal",
     "Opening a full-screen modal": "Opening a full-screen modal",
+    "navigating-without-navigation-prop": "Navigating without the navigation prop",
+    "Navigating without the navigation prop": "Navigating without the navigation prop",
     "navigating": "Moving between screens",
     "Moving between screens": "Moving between screens",
     "navigation-actions": "NavigationActions reference",