Update cta_strategy.md
Update cta_strategy.md

bigdig/vnpy,msincenselee/vnpy,andrewchenshx/vnpy,andrewchenshx/vnpy,msincenselee/vnpy,bigdig/vnpy,andrewchenshx/vnpy,msincenselee/vnpy,vnpy/vnpy,andrewchenshx/vnpy,msincenselee/vnpy,vnpy/vnpy,bigdig/vnpy,andrewchenshx/vnpy,bigdig/vnpy