Add account commodities and notes

all.ledger

@@ -1,14 +1,31 @@
 account Assets:Banking
+    note Where money sits
     alias b
+    check commodity == "$"
+    assert commodity == "$"
 
 account Liabilities:Credit
+    note Money I owe
     alias c
+    check commodity == "$"
+    assert commodity == "$"
 
 account Expenses
     alias e
+    check commodity == "$"
+    assert commodity == "$"
 
 account Income
+    note Where money comes from
     alias i
+    check commodity == "$"
+    assert commodity == "$"
+
+account Equity
+    note Real value of property
+    alias eq
+    check commodity == "$"
+    assert commodity == "$"
 
 ; Budgets