chore: add readme.

README.md

@@ -2,14 +2,47 @@
 
 Connect luxand made easy.
 
-## Getting Started
+### Face enrollment
 
-This project is a starting point for a Flutter
-[plug-in package](https://flutter.dev/developing-packages/),
-a specialized package that includes platform-specific implementation code for
-Android and/or iOS.
+```
+EnrollFace(
+    licenseKey: Env.luxandLicenseKey,
+    onFinish: (templates) {
+        Get.off(LivenessPage(templates: templates));
+    },
+)
+```
 
-For help getting started with Flutter development, view the
-[online documentation](https://flutter.dev/docs), which offers tutorials,
-samples, guidance on mobile development, and a full API reference.
+| Parameter Name         | Description                                             | Default value         |
+|------------------------|---------------------------------------------------------|-----------------------|
+| licenseKey             | Luxand license key                                      | None                  |
+| imageStreamMilliSecond | Capture image every this value and send image to luxand | 100 ms                |
+| templateCount          | Total template for this enrollment                       | 3                     |
+| topMessage             | Display message that show on top of face rectangle      | 'Please touch screen' |
 
+
+### Active liveness detection
+
+```
+ActiveLivenessVerifier(
+    licenseKey: Env.luxandLicenseKey,
+    onFinish: (success, template) {},
+)
+```
+
+| Parameter Name         | Description                                                                                                                                 | Default value |
+|------------------------|---------------------------------------------------------------------------------------------------------------------------------------------|---------------|
+| licenseKey             | Luxand license key                                                                                                                          | None          |
+| imageStreamMilliSecond | Capture image every this value and send image to luxand                                                                                     | 200 ms        |
+| failAcceptableInSecond | Widget will finish and return false if luxand cannot detect face in picture in 1 / imageStreamInMillisecond / 1000 x failAcceptableInSecond | 3 s           |
+
+### Matching face template
+:warning: this widget can match template but not yet send data to user (in development).
+
+```
+MatchTemplateScanner(
+    licenseKey: Env.luxandLicenseKey,
+    templates: con.templates,
+    onFinish: (success, template) {},
+)
+```
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