modify readme (#34)

Author: kanat

README.md

@@ -1,32 +1,8 @@
-**WebRTC is a free, open software project** that provides browsers and mobile
-applications with Real-Time Communications (RTC) capabilities via simple APIs.
-The WebRTC components have been optimized to best serve this purpose.
+### WebRTC
 
-**Our mission:** To enable rich, high-quality RTC applications to be
-developed for the browser, mobile platforms, and IoT devices, and allow them
-all to communicate via a common set of protocols.
+This repository is a fork of the WebRTC project. The original README can be found [here](README_webrtc.md).
 
-The WebRTC initiative is a project supported by Google, Mozilla and Opera,
-amongst others.
-
-### Development
-
-See [here][native-dev] for instructions on how to get started
-developing with the native code.
-
-[Authoritative list](native-api.md) of directories that contain the
-native API header files.
-
-### More info
-
- * Official web site: http://www.webrtc.org
- * Master source code repo: https://webrtc.googlesource.com/src
- * Samples and reference apps: https://github.com/webrtc
- * Mailing list: http://groups.google.com/group/discuss-webrtc
- * Continuous build: https://ci.chromium.org/p/webrtc/g/ci/console
- * [Coding style guide](g3doc/style-guide.md)
- * [Code of conduct](CODE_OF_CONDUCT.md)
- * [Reporting bugs](docs/bug-reporting.md)
- * [Documentation](g3doc/sitemap.md)
-
-[native-dev]: https://webrtc.googlesource.com/src/+/main/docs/native-code/
+### License
+- [WebRTC](https://webrtc.org) software is licensed under the [BSD license](https://github.com/GetStream/webrtc/blob/main/LICENSE).
+- Includes patches from [shiguredo-webrtc-build](https://github.com/shiguredo-webrtc-build), licensed under the [Apache 2.0](https://github.com/shiguredo-webrtc-build/webrtc-build/blob/master/LICENSE).
+- Includes modifications from [webrtc-sdk/webrtc](https://github.com/webrtc-sdk/webrtc), licensed under the [BSD license](https://github.com/webrtc-sdk/webrtc/blob/master/LICENSE).

README_webrtc.md

@@ -0,0 +1,32 @@
+**WebRTC is a free, open software project** that provides browsers and mobile
+applications with Real-Time Communications (RTC) capabilities via simple APIs.
+The WebRTC components have been optimized to best serve this purpose.
+
+**Our mission:** To enable rich, high-quality RTC applications to be
+developed for the browser, mobile platforms, and IoT devices, and allow them
+all to communicate via a common set of protocols.
+
+The WebRTC initiative is a project supported by Google, Mozilla and Opera,
+amongst others.
+
+### Development
+
+See [here][native-dev] for instructions on how to get started
+developing with the native code.
+
+[Authoritative list](native-api.md) of directories that contain the
+native API header files.
+
+### More info
+
+ * Official web site: http://www.webrtc.org
+ * Master source code repo: https://webrtc.googlesource.com/src
+ * Samples and reference apps: https://github.com/webrtc
+ * Mailing list: http://groups.google.com/group/discuss-webrtc
+ * Continuous build: https://ci.chromium.org/p/webrtc/g/ci/console
+ * [Coding style guide](g3doc/style-guide.md)
+ * [Code of conduct](CODE_OF_CONDUCT.md)
+ * [Reporting bugs](docs/bug-reporting.md)
+ * [Documentation](g3doc/sitemap.md)
+
+[native-dev]: https://webrtc.googlesource.com/src/+/main/docs/native-code/