Update content/cli/workspaces.md

Author: kamilmysliwiec

content/cli/workspaces.md

@@ -89,7 +89,7 @@ At this point, `nest` converts the existing structure to a **monorepo mode** str
 
 The `generate app` schematic has reorganized the code - moving each **application** project under the `apps` folder, and adding a project-specific `tsconfig.app.json` file in each project's root folder. Our original `my-project` app has become the **default project** for the monorepo, and is now a peer with the just-added `my-app`, located under the `apps` folder. We'll cover default projects below.
 
-> warning **Warning** The conversion of a standard mode structure to monorepo only works for projects that have followed the canonical Nest project structure. Specifically, during conversion, the schematic attempts to relocate the `src` and `test` folders in a project folder beneath the `apps` folder in the root. If a project does not use this structure, the conversion will fail or produce unreliable results.
+> error **Warning** The conversion of a standard mode structure to monorepo only works for projects that have followed the canonical Nest project structure. Specifically, during conversion, the schematic attempts to relocate the `src` and `test` folders in a project folder beneath the `apps` folder in the root. If a project does not use this structure, the conversion will fail or produce unreliable results.
 
 #### Workspace projects