small doc edits

Ledger/Amount.hs

@@ -13,13 +13,14 @@ A simple amount is a commodity, quantity pair (where commodity can be anything):
   0 
 @
 
-A mixed amount (not yet implemented) is one or more simple amounts:
+A mixed amount is zero or more simple amounts:
 
 @
   $50, EUR 3, AAPL 500
   16h, $13.55, oranges 6
 @
 
+Not fully implemented:
 Commodities may be convertible or not. A mixed amount containing only
 convertible commodities can be converted to a simple amount. Arithmetic
 examples:

Options.hs

@@ -13,7 +13,7 @@ warning     = if negativepatternchar=='-' then " (must appear before command)" e
 usageftr    = "\n" ++
               "Commands (may be abbreviated):\n" ++
               "balance  - show account balances\n" ++
-              "print    - show parsed and reformatted ledger entries\n" ++
+              "print    - show formatted ledger entries\n" ++
               "register - show register transactions\n" ++
               "\n" ++
               "Account and description patterns are regular expressions, optionally prefixed\n" ++