description.md in trackler-2.1.0.19

- old
+ new

@@ -1,4 +1,6 @@
+Refactor a ledger printer.
+
 The ledger exercise is a refactoring exercise. There is code that prints a
 nicely formatted ledger, given a locale (American or Dutch) and a currency (US
 dollar or euro). The code however is rather badly written, though (somewhat
 surprisingly) it consistently passes the test suite.
 