message: Clarify create plugin step
diff: @@ -9,8 +9,9 @@ A Backstage Plugin adds functionality to Backstage.
  ## Create a Plugin
  To create a new plugin, make sure you've run `yarn install` and installed
  -dependencies, then run the following on your command line (invoking the
  -`backstage-cli`).
  +dependencies, then run the following on your command line (a shortcut to
  +invoking the [`backstage-cli create-plugin`](../cli/commands.md#create-plugin))
  +from the root of your project.
  ```bash
  yarn create-plugin
  