Sprint 3 implement task reword

Sprint-3/1-implement-and-rewrite-tests/README.md

@@ -8,7 +8,7 @@ to choose test values that thoroughly test a function.
 In the `implement` directory you've got a number of functions you'll need to implement.
 For each function, you also have a number of different cases you'll need to check for your function.
 
-Write your assertions and build up your program case by case. Don't rush to a solution. The point of these assignments is to learn how to write assertions and build up a program step by step.
+Write your implementation and then write your tests to cover the cases the function should fulfil.
 
 Here is a recommended order:
 

Sprint-3/1-implement-and-rewrite-tests/implement/3-get-card-value.js

@@ -46,7 +46,9 @@ try {
   getCardValue("invalid");
 
   // This line will not be reached if an error is thrown as expected
-  console.error("Error was not thrown for invalid card");
-} catch (e) {}
+  console.error("Error was not thrown for invalid card 😢");
+} catch (e) {
+  console.error("Error thrown for invalid card 🎉");
+}
 
 // What other invalid card cases can you think of?