README.md in trackler-2.2.1.104

- old
+ new
@@ -3,31 +3,37 @@
 Determine if a number is perfect, abundant, or deficient based on
 Nicomachus' (60 - 120 CE) classification scheme for natural numbers.
 
 The Greek mathematician [Nicomachus](https://en.wikipedia.org/wiki/Nicomachus) devised a classification scheme for natural numbers, identifying each as belonging uniquely to the categories of **perfect**, **abundant**, or **deficient** based on their [aliquot sum](https://en.wikipedia.org/wiki/Aliquot_sum). The aliquot sum is defined as the sum of the factors of a number not including the number itself. For example, the aliquot sum of 15 is (1 + 3 + 5) = 9
 
-- **Perfect**: aliquot sum = number 
+- **Perfect**: aliquot sum = number
   - 6 is a perfect number because (1 + 2 + 3) = 6
   - 28 is a perfect number because (1 + 2 + 4 + 7 + 14) = 28
 - **Abundant**: aliquot sum > number
   - 12 is an abundant number because (1 + 2 + 3 + 4 + 6) = 16
   - 24 is an abundant number because (1 + 2 + 3 + 4 + 6 + 8 + 12) = 36
 - **Deficient**: aliquot sum < number
   - 8 is a deficient number because (1 + 2 + 4) = 7
   - Prime numbers are deficient
-  
+
 Implement a way to determine whether a given number is **perfect**. Depending on your language track, you may also need to implement a way to determine whether a given number is **abundant** or **deficient**.
 
-## Making the Test Suite Pass
 
-1. Get [PHPUnit].
+## Running the tests
 
+1. Go to the root of your PHP exercise directory, which is `<EXERCISM_WORKSPACE>/php`.
+   To find the Exercism workspace run
+
+        % exercism debug | grep Workspace
+
+1. Get [PHPUnit] if you don't have it already.
+
         % wget --no-check-certificate https://phar.phpunit.de/phpunit.phar
         % chmod +x phpunit.phar
 
-2. Execute the tests for an assignment.
+2. Execute the tests:
 
-        % phpunit.phar wordy/wordy_test.php
+        % ./phpunit.phar perfect-numbers/perfect-numbers_test.php
 
 [PHPUnit]: http://phpunit.de
 
 
 ## Source