[Full Changelog](https://github.com/c9s/bbgo/compare/v1.31.3...main)

## Improves

 - [#582](https://github.com/c9s/bbgo/pull/582): improve: backtest: rename backtest.account to backtest.accounts

## Fixes

 - [#580](https://github.com/c9s/bbgo/pull/580): fix: fix okex rate limit
 - [#579](https://github.com/c9s/bbgo/pull/579): fix: fix kucoin rate limit