README.md in trackler-2.2.1.104

- old
+ new

@@ -1,24 +1,24 @@
 # Book Store
 
 To try and encourage more sales of different books from a popular 5 book
 series, a bookshop has decided to offer discounts on multiple book purchases.
 
-One copy of any of the five books costs $8. 
+One copy of any of the five books costs $8.
 
 If, however, you buy two different books, you get a 5%
 discount on those two books.
 
-If you buy 3 different books, you get a 10% discount. 
+If you buy 3 different books, you get a 10% discount.
 
 If you buy 4 different books, you get a 20% discount.
 
-If you buy all 5, you get a 25% discount. 
+If you buy all 5, you get a 25% discount.
 
 Note: that if you buy four books, of which 3 are
 different titles, you get a 10% discount on the 3 that
-form part of a set, but the fourth book still costs $8. 
+form part of a set, but the fourth book still costs $8.
 
 Your mission is to write a piece of code to calculate the
 price of any conceivable shopping basket (containing only
 books of the same series), giving as big a discount as
 possible.
@@ -28,11 +28,11 @@
 - 2 copies of the first book
 - 2 copies of the second book
 - 2 copies of the third book
 - 1 copy of the fourth book
 - 1 copy of the fifth book
- 
+
 One way of grouping these 8 books is:
 
 - 1 group of 5 --> 25% discount (1st,2nd,3rd,4th,5th)
 - +1 group of 3 --> 10% discount (1st,2nd,3rd)
 
@@ -65,19 +65,25 @@
 
 For a total of $51.20
 
 And $51.20 is the price with the biggest discount.
 
-## 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 book-store/book-store_test.php
 
 [PHPUnit]: http://phpunit.de
 
 
 ## Source