update readme

Author: rintrint

README.md

@@ -1,20 +1,37 @@
 # KKBridge
 
+Export Timeline animations to VMD format.
+
+## Note
+
+Use Koikatu instead of KoikatuSunshine for better stability. If you encounter issues with KoikatuSunshine, try Koikatu.
+
 ## Requirements
+
 * Visual Studio 2022
 
 ## How to build
+
 Build `src/KKBridge.sln` with Visual Studio.
 
 ## Dependencies
+
 * BepInEx
 * 0Harmony
 * Timeline
 * DLLs from Koikatsu
 * SimpleJson
 
 ## License
+
 This project is licensed under the MIT License. See the [LICENSE](LICENSE) file for details.
 
 ## Contributors
-See https://github.com/rintrint/KKBridge/graphs/contributors
+
+See <https://github.com/rintrint/KKBridge/graphs/contributors>
+
+## Screenshots
+
+![export_01_button](docs/images/export_01_button.png)
+
+![export_02_settings](docs/images/export_02_settings.png)