📝 Update README.md

README.md

@@ -1,9 +1,34 @@
 # cornerstoneTools-RotatedEllipticalRoiTool
 
 
-An annotation tool of drawing rotated elliptical roi. It is 3rd party library of [cornerstoneTools](https://github.com/cornerstonejs/cornerstoneTools).
+An annotation tool of drawing rotated elliptical roi. It is 3rd party library of [cornerstoneTools](https://github.com/cornerstonejs/cornerstoneTools).<br>
+You can try to test this tool in [here](https://examples.sisobus.com/rotated-elliptical-roi)
 
 ## Demo
 
-![rellipticalroi](https://user-images.githubusercontent.com/3329885/58860190-87c5d480-86e6-11e9-9564-018ad626ae30.gif)
+<img src="https://user-images.githubusercontent.com/3329885/58860190-87c5d480-86e6-11e9-9564-018ad626ae30.gif" width="400">
+
+
+## Installation
+
+```sh
+$ yarn add cornerstone-tools-rotated-elliptical-roi-tool
+```
+
+or
+
+```sh
+$ npm i cornerstone-tools-rotated-elliptical-roi-tool
+```
+
+This library has dependencies below
+
+* [cornerstone-core](https://github.com/cornerstonejs/cornerstone)
+* [cornerstone-tools](https://github.com/cornerstonejs/cornerstoneTools)
+* [cornerstone-math](https://github.com/cornerstonejs/cornerstoneMath)
+
+
+## LICENSE
+
+MIT