openvidu-webcomponent: Updated Readme

openvidu-webcomponent/README.md

@@ -11,3 +11,34 @@ openvidu-webcomponent
 Visit [openvidu.io/docs/tutorials/openvidu-webcomponent/](http://openvidu.io/docs/tutorials/openvidu-webcomponent/)
 
 [OpenViduLogo]: https://secure.gravatar.com/avatar/5daba1d43042f2e4e85849733c8e5702?s=120
+
+
+### How to build a webcomponent
+
+First of all, the webcomponent is built from openvidu-call so you must to clone this repository first:
+
+```bash
+$ git clone https://github.com/OpenVidu/openvidu-call.git
+```
+And also clone openvidu-tutorials in the same path with: 
+
+```bash
+$ git clone https://github.com/OpenVidu/openvidu-tutorials.git
+```
+
+Once done, you will ned to go to the angular project with:
+
+```bash
+$ cd <your-path>/openvidu-call/front/openvidu-call/
+```
+Install npm dependencies with:
+
+```bash
+$ npm install
+```
+
+After that the following command will generate and copy the webcomponent files into a openvidu-webcomponent project:
+
+```bash
+$ npm run build:openvidu-webcomponent
+```