Updated readme

README.md

@@ -1,12 +1,46 @@
-# imageflow-go
+# Go Binding for [Imageflow](https://github.com/imazen/imageflow)
+
 ![Windows](https://github.com/imazen/imageflow-go/workflows/Windows/badge.svg)![Macos](https://github.com/imazen/imageflow-go/workflows/Macos/badge.svg)![Linux](https://github.com/imazen/imageflow-go/workflows/Linux/badge.svg)
 
-# Usage Example
+Quickly scale or modify images and optimize them for the web.
+
+If the AGPLv3 does not work for you, you can get a commercial license on a sliding scale. If you have more than 1 server doing image processing your savings should cover the cost.
+
+Docs are [here](https://pkg.go.dev/github.com/imazen/imageflow-go)
+
+# Installation
+
+Imageflow dependents on `libimageflow` for image processing capabilities. `libimageflow` is available as the static and dynamic shared library on Linux and macOS. Currently `libimageflow` is available as a dynamic library for Windows. Prebuilt shared libraries are available [here](https://github.com/imazen/imageflow/releases). Add `libimageflow`to OS path. Then it can be downloaded using`go get`.
+
+```bash
+$ go get github.com/imazen/imageflow-go
+```
+
+# Usage
+
+A simple go program to create two image of different size.
 
 ```go
-	step := NewStep()
-	step.Decode(&File{filename: "image.jpg"}).ConstrainWithinW(400).Branch(func(step *Steps) {
-		step.ConstrainWithin(100, 100).Encode(&File{filename: "small.jpg"}, MozJPEG{})
-	}).Encode(&File{filename: "medium.jpg"}, MozJPEG{}).Execute()
+package main;
+
+import (
+	"io/ioutil"
+
+	imageflow "github.com/imazen/imageflow-go"
+)
+
+func main(){
+	step:=imageflow.NewStep()
+	data,_:=step
+	.Decode(imageflow.NewURL("https://jpeg.org/images/jpeg2000-home.jpg"))
+	.Branch(func(step *imageflow.Steps){
+		step
+		.ConstrainWithin(200,200)
+		.Encode(imageflow.NewFile("test_1.jpg"),imageflow.MozJPEG{})
+	}).ConstrainWithin(400,400)
+	.Encode(imageflow.GetBuffer("test"),imageflow.MozJPEG{})
+	.Execute()
+	ioutil.WriteFile("test_2.jpeg",data["test"],0644)
+}
 
-```
+```