docs: gpu-crashed is moved to app

docs/api/app.md

@@ -125,6 +125,10 @@ app.on('select-certificate', function(event, host, url, list, callback) {
 `event.preventDefault()` prevents from using the first certificate from
 the store.
 
+### Event: 'gpu-crashed'
+
+Emitted when the gpu process is crashed.
+
 ## app.quit()
 
 Try to close all windows. The `before-quit` event will first be emitted. If all

docs/api/browser-window.md

@@ -757,10 +757,6 @@ Calling `event.preventDefault()` can prevent the navigation.
 
 Emitted when the renderer process is crashed.
 
-### Event: 'gpu-crashed'
-
-Emitted when the gpu process is crashed.
-
 ### Event: 'plugin-crashed'
 
 * `event` Event