Update README.md

Author: ghiculescu

README.md

@@ -28,26 +28,13 @@ The `tailwindcss:build` is automatically attached to `assets:precompile`, so bef
 
 ### Building for testing
 
-The `tailwindcss:build` is automatically attached to the `test:prepare` rake task. This is attached before Rails tests if you run them using rake, or you can run it manually.
+The `tailwindcss:build` is automatically attached to the `test:prepare` task. This is attached before Rails tests (eg `test:all` or `test:controllers`).
 
-If you need a Tailwind file in your CI environment, you have a few options:
+If you need a Tailwind file in your CI environment to run tests, the simplest way to do this is to run this command:
 
-<details>
-    <summary>Run tests via a rake task</summary>
-    
-`bin/rake test:all`, or another of [these](https://github.com/rails/rails/blob/main/railties/lib/rails/test_unit/testing.rake) tasks.
-    
-</details>
-
-<details>
-    <summary>Run tests via a `rails` command</summary>
-    
 ```
-bin/rake test:prepare
-bin/rails test
+bin/rails test:prepare test
 ```
-    
-</details>
 
 ### Update assets automatically