move user-guide link to FOSSLight guide

Signed-off-by: Jiyeong Seok <[email protected]>
Signed-off-by: Jaekwon Bang <[email protected]>

Author: dd-jy

README.md

@@ -20,9 +20,24 @@ Currently, it supports the following package managers.
 - [Pub](https://pub.dev/) (Dart with flutter)
 - [Cocoapods](https://cocoapods.org/) (Swift/Obj-C)
 
+## 🧐 How to analyze the dependencies
+
+FOSSLight Dependency Scanner utilizes the open source software for analyzing each package manager dependencies. We choose the open source software for each package manager that shows not only the direct dependencies but also the transitive dependencies including the information of dependencies such as oss name, oss version and license name.
+
+Each package manager uses the results of the following software:
+
+- NPM : [NPM License Checker](https://github.com/davglass/license-checker)
+- Pypi : [pip-licenses](https://github.com/raimon49/pip-licenses)
+- Gradle : [License Gradle Plugin](https://github.com/hierynomus/license-gradle-plugin)
+- Maven : [license-maven-plugin](https://github.com/mojohaus/license-maven-plugin)
+- Pub : [flutter_oss_licenses](https://github.com/espresso3389/flutter_oss_licenses)
+
+Because we utilizes the different open source software to analyze the dependencies of each package manager, you need to set up the **Prerequisite** steps in [User guide](https://fosslight.org/fosslight-guide-en/scanner/2_dependency.html) according to package manager to analyze.
+
 ## 📖 User Guide
 
-Please see the [**User Guide**](https://github.com/fosslight/fosslight_dependency_scanner/blob/main/docs/user-guide.md) for more information on how to install and run it.
+We describe the user guide in the FOSSLight guide page.
+Please see the [**User Guide**](https://fosslight.org/fosslight-guide-en/scanner/2_dependency.html) for more information on how to install and run it.
 
 ## 👏 Contributing Guide