feat(@angular/cli): add markdown files to Prettier's formatting list

Improve README template spacing.

Author: alan-agius4

packages/angular/cli/src/command-builder/utilities/prettier.ts

@@ -20,6 +20,7 @@ let prettierCliPath: string | null | undefined;
  * File types that can be formatted using Prettier.
  */
 const fileTypes: ReadonlySet<string> = new Set([
+  '.md',
   '.ts',
   '.html',
   '.js',

packages/schematics/angular/library/files/README.md.template

@@ -31,6 +31,7 @@ This command will compile your project, and the build artifacts will be placed i
 Once the project is built, you can publish your library by following these steps:
 
 1. Navigate to the `dist` directory:
+
    ```bash
    cd dist/<%= dasherize(name) %>
    ```