diff --git a/README.md b/README.md
index c8b0c7f..f9e157e 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,21 @@
 # AsmdefGraph
 unity assembly definition viewer
+
+# How to use
+
+[Window] > [Open Asemdef Graph Window]
+
+<img src="https://github.com/naninunenoy/AsmdefGraph/blob/doc/doc/howto_open.png?raw=true" width="200" />
+
+Show assembly definition referances in your project like this.
+
+<img src="https://github.com/naninunenoy/AsmdefGraph/blob/doc/doc/asmdefGraph.png?raw=true" width="200" />
+
+
+You need to organize the nodes by yourself.
+
+## License
+MIT
+
+## Author
+[@naninunenoy](https://github.com/naninunenoy)