message: add troubleshot instructions when plugin.ts is missing
diff: @@ -4,20 +4,24 @@ The shortcuts plugin allows a user to have easy access to pages within a Backsta
  ## Usage
  -Install the package:
  +### Install the package:
  ```bash
  yarn add @backstage/plugin-shortcuts
  ```
  -Add it to your App's `plugins.ts` file:
  +### Register plugin:
  +
  +This plugin requires explicit registration, so you will need to add it to your App's `plugins.ts` file:
  ```ts
  // ...
  export { shortcutsPlugin } from '@backstage/plugin-shortcuts';
  ```
  -Add the `<Shortcuts />` component within your `<Sidebar>`:
  +If you don't have a `plugins.ts` see: [troubleshoot](#troubleshoot)
  +
  +### Add the `<Shortcuts />` component within your `<Sidebar>`:
  ```tsx
  import { Sidebar, SidebarDivider, SidebarSpace } from '@backstage/core';
  @@ -50,3 +54,33 @@ export const apis = [
  }),
  ];
  ```
  +
  +# Troubleshoot
  +
  +If you don't have a `plugins.ts` you can create a new one on `packages/app/src/plugins.ts` and then add this lines to your `App.tsx` if there is other plugins that requires explicit registration:
  +
  +```diff
  ++ import * as plugins from './plugins';
  +
  +const app = createApp({
  + apis,
  ++ plugins: Object.values(plugins),
  + bindRoutes({ bind }) {
  + /* ... */
  + },
  +});
  +```
  +
  +Or simply edit `App.tsx` with:
  +
  +```diff
  ++ import { shortcutsPlugin } from '@backstage/plugin-shortcuts
  +
  +const app = createApp({
  + apis,
  ++ plugins: [shortcutsPlugin],
  + bindRoutes({ bind }) {
  + /* ... */
  + },
  +});
  +```
  