Improve readme

README.md

@@ -5,7 +5,7 @@
 [![Go Report Card](https://goreportcard.com/badge/github.com/evsamsonov/trading-timeseries)](https://goreportcard.com/report/github.com/evsamsonov/trading-timeseries)
 [![codecov](https://codecov.io/gh/evsamsonov/trading-timeseries/branch/master/graph/badge.svg?token=6HV8Z6ZAE0)](https://codecov.io/gh/evsamsonov/trading-timeseries)
 
-Timeseries provides structure for series of trading candles. 
+Timeseries provides structures for trading candles series and tick series. 
 
 ## Installation
 
@@ -14,40 +14,5 @@ $ go get github.com/evsamsonov/trading-timeseries
 ```
 
 ## Usage
+[See documentation and examples](https://pkg.go.dev/github.com/evsamsonov/trading-timeseries)
 
-
-```go
-dataset := []struct {
-    Time   time.Time
-    High   float64
-    Low    float64
-    Open   float64
-    Close  float64
-    Volume int64
-}{
-    {Time: time.Unix(1, 0), High: 1, Low: 2, Open: 3, Close: 4, Volume: 5},
-    {Time: time.Unix(2, 0), High: 6, Low: 7, Open: 8, Close: 9, Volume: 10},
-}
-
-series := timeseries.New()
-for _, item := range dataset {
-    candle := timeseries.NewCandle(item.Time)
-    candle.Open = item.Open
-    candle.Close = item.Close
-    candle.High = item.High
-    candle.Low = item.Low
-    candle.Volume = item.Volume
-
-    err := series.AddCandle(candle)
-    if err != nil {
-        log.Printf("Failed to add candle: %v\n", err)
-    }
-}
-
-fmt.Println(series.Candle(0))    // &{1970-01-01 03:00:01 +0300 MSK 1 2 3 4 5}
-fmt.Println(series.LastCandle()) // &{1970-01-01 03:00:02 +0300 MSK 6 7 8 9 10}
-fmt.Println(series.Length())     // 2
-```
-
-TODO 
-tickseries