README.md: Include .spec.js in test command instruction

README.md

@@ -16,12 +16,10 @@ If you have a suggestion to improve an exercise, an idea for a new exercise, or
 1. **npm installation:** You should have installed npm already in our [Installing Node.js](https://www.theodinproject.com/paths/foundations/courses/foundations/lessons/installing-node-js) lesson. Just in case you need to check, type `npm --version` in your terminal. If you get back `Command 'npm' not found, but can be installed with:`, **do not follow the instructions in the terminal** to install with `apt-get` as this causes permission issues. Instead, **go back to the installation lesson** and install Node with NVM by following the instructions there.
 1. **Jest installation:** After cloning this repository to your local machine and installing npm, go **into** the newly created directory (`cd javascript-exercises`) and run `npm install`. This will install Jest and set up the testing platform based on our preconfigured settings. (Note: if you get warnings that packages are out of date or contain vulnerabilities, you can safely ignore them for these exercises.)
 1. Each exercise includes the following:
-
    - A markdown file with a description of the task, an empty (or mostly empty) JavaScript file, and a set of tests.
    - A `solutions` directory that contains an example solution and the same test file with all of the tests unskipped.
 
-   To complete an exercise, you will need to go to the exercise directory with `cd <path to file>` in the terminal and run `npm test exerciseName.spec.js`. For example, to go to the first Foundations exercise "helloWorld", you need to `cd foundations/01_helloWorld` then run `npm test helloWorld`. This should run the test file and show you the output. When you run a test for the first time, it will fail. This is by design! You must open the exercise file and write the code needed to get the test to pass.
-
+   To complete an exercise, you will need to go to the exercise directory with `cd <path to file>` in the terminal and run `npm test exerciseName.spec.js`. For example, to go to the first Foundations exercise "helloWorld", you need to `cd foundations/01_helloWorld` then run `npm test helloWorld.spec.js`. This should run the test file and show you the output. When you run a test for the first time, it will fail. This is by design! You must open the exercise file and write the code needed to get the test to pass.
 1. Some of the exercises have test conditions defined in their spec file as `test.skip` instead of `test`. This is intentional. Once all `test` cases pass, you will change the next `test.skip` to `test` and test your code again. You will do this until all conditions are satisfied. **All tests must pass at the same time**, and you should not have any instances of `test.skip` in the spec file when you are finished with an exercise.
 1. Once you successfully finish an exercise, check the `solutions` directory within each exercise.
    - You should not be checking the solution for an exercise until you finish it!