Importer variable nomenclature is not compatible with fava

[mlell]

fava v1.30.7 expects the importer configuration to be a Python module with the variables CONFIG and HOOKS:

https://github.com/beancount/fava/blob/d6968fa0c3a48d42365532167faa23a4550a04f4/src/fava/core/ingest.py#L334-L336

However, the example calls them importers and hooks.

beangulp/examples/import.py

Lines 12 to 25 in c5e8188

	importers = [
	utrade.Importer(
	"USD",
	"Assets:US:UTrade",
	"Assets:US:UTrade:Cash",
	"Income:US:UTrade:{}:Dividend",
	"Income:US:UTrade:{}:Gains",
	"Expenses:Financial:Fees",
	"Assets:US:BofA:Checking",
	),
	ofx.Importer("379700001111222", "Liabilities:US:CreditCard", "bofa"),
	acme.Importer("Assets:US:ACMEBank"),
	csvbank.Importer("Assets:US:CSVBank", "USD"),
	]

This is confusing and not documented anywhere. How about renaming the variables in the example? This would make things easier for new users.