add v1.40.0 release note

Author: c9s

doc/release/v1.40.0.md

@@ -0,0 +1,34 @@
+## Fixes
+
+- Fixed fixedpoint unmarshal json for inf.
+- Fixed backtest output.
+- Fixed backtest price matching for taker orders.
+- Upgraded dependencies to fix the security issue.
+- Fixed time-zone issue for back-test data (use local timezone)
+
+## Strategy / Features
+
+- strategy/bollmaker: improved dynamic spread by bollinger band sigmoid.
+- strategy/pivotshort: added failed break high short.
+- strategy/drift: added weighted drift
+
+
+[Full Changelog](https://github.com/c9s/bbgo/compare/v1.39.2...main)
+
+ - [#914](https://github.com/c9s/bbgo/pull/914): Fix typo
+ - [#913](https://github.com/c9s/bbgo/pull/913): fix: fixedpoint UnarshalJson on inf
+ - [#911](https://github.com/c9s/bbgo/pull/911): feature: add fee mode to back-test matching engine
+ - [#912](https://github.com/c9s/bbgo/pull/912): fix backtest output
+ - [#900](https://github.com/c9s/bbgo/pull/900): fix: backtest
+ - [#908](https://github.com/c9s/bbgo/pull/908): strategy/pivotshort: failed break high improvements
+ - [#907](https://github.com/c9s/bbgo/pull/907): build(deps): bump minimist from 1.2.5 to 1.2.6 in /contracts
+ - [#906](https://github.com/c9s/bbgo/pull/906): fix: bump moment from 2.29.3 to 2.29.4
+ - [#904](https://github.com/c9s/bbgo/pull/904): strategy/pivotshort: add failed break high
+ - [#899](https://github.com/c9s/bbgo/pull/899): fix: fix localtime zone issue for the web-based backtest report
+ - [#898](https://github.com/c9s/bbgo/pull/898): Refactor/pivotshort
+ - [#897](https://github.com/c9s/bbgo/pull/897): Feature/extend floats funcs
+ - [#895](https://github.com/c9s/bbgo/pull/895): refactor: move float slice/map to a single package
+ - [#880](https://github.com/c9s/bbgo/pull/880): Improve: strategy-supertrend output acc. profit report to tsv file
+ - [#894](https://github.com/c9s/bbgo/pull/894): Improve: bollmaker preloads dynamic spreads
+ - [#892](https://github.com/c9s/bbgo/pull/892): feature: add pivot low right window support
+ - [#890](https://github.com/c9s/bbgo/pull/890): weighted drift