README.md in trackler-2.2.1.104

- old
+ new

@@ -5,14 +5,16 @@
 Implement binary to decimal conversion. Given a binary input
 string, your program should produce a decimal output. The
 program should handle invalid inputs.
 
 ## Note
+
 - Implement the conversion yourself.
   Do not use something else to perform the conversion for you.
 
 ## About Binary (Base-2)
+
 Decimal is a base-10 system.
 
 A number 23 in base 10 notation can be understood
 as a linear combination of powers of 10:
 
@@ -26,19 +28,25 @@
 
 Binary is similar, but uses powers of 2 rather than powers of 10.
 
 So: `101 => 1*2^2 + 0*2^1 + 1*2^0 => 1*4 + 0*2 + 1*1 => 4 + 1 => 5 base 10`.
 
-## 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 binary/binary_test.php
 
 [PHPUnit]: http://phpunit.de
 
 
 ## Source