doc(create-app):enhance changelog for create-app settings routing

.changeset/healthy-crews-remember.md

@@ -0,0 +1,19 @@
+---
+'@backstage/create-app': patch
+---
+
+fix routing and config for user-settings plugin
+
+To make the corresponding change in your local app, add the following in your App.tsx
+
+```
+import { Router as SettingsRouter } from '@backstage/plugin-user-settings';
+...
+<Route path="/settings" element={<SettingsRouter />} />
+```
+
+and the following to your plugins.ts:
+
+```
+export { plugin as UserSettings } from '@backstage/plugin-user-settings';
+```

.changeset/ninety-turtles-fix.md

@@ -1,5 +0,0 @@
----
-'@backstage/create-app': patch
----
-
-fix routing and config for user-settings plugin