message: apply suggested language improvements
diff: @@ -19,7 +19,7 @@ This plugin requires explicit registration, so you will need to add it to your A
  export { shortcutsPlugin } from '@backstage/plugin-shortcuts';
  ```
  -If you don't have a `plugins.ts` see: [troubleshoot](#troubleshoot)
  +If you don't have a `plugins.ts` file see: [troubleshooting](#troubleshooting)
  ### Add the `<Shortcuts />` component within your `<Sidebar>`:
  @@ -55,9 +55,9 @@ export const apis = [
  ];
  ```
  -# Troubleshoot
  +# Troubleshooting
  -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:
  +If you don't have a `plugins.ts` file, you can create it with the path `packages/app/src/plugins.ts` and then import it into your `App.tsx`:
  ```diff
  + import * as plugins from './plugins';
  