Add portfolio example tool
Add portfolio example tool

thrasher-/gocryptotrader,snipesjr/gocryptotrader,snipesjr/gocryptotrader,jmaurice/gocryptotrader,snipesjr/gocryptotrader,snipesjr/gocryptotrader,thrasher-/gocryptotrader,thrasher-/gocryptotrader,thrasher-/gocryptotrader,thrasher-/gocryptotrader