Implement option to add account2s and commodities to resolve #2.

src/write.py

@@ -1,6 +1,6 @@
 from pathlib import Path
 from typing import List
-from src.models import Transaction
+from src.models import Transaction, Config
 
 
 LEDGER_TRANSACTION_TEMPLATE = """
@@ -10,8 +10,8 @@ LEDGER_TRANSACTION_TEMPLATE = """
 """
 
 
-def render_to_file(transactions: List[Transaction], ledger_file: Path):
+def render_to_file(transactions: List[Transaction], config: Config):
     content = "".join([LEDGER_TRANSACTION_TEMPLATE.format(t=t)
                        for t in transactions])
-    with open(ledger_file, 'a') as f:
+    with open(config.output_file, 'a') as f:
         f.write(content)