update readme.md

Signed-off-by: Nuttawut Kongsuwan <[email protected]>

README.md

@@ -1,9 +1,26 @@
 # Composable Event Streaming Representation (CESR)
 
-## Contributing
+This is the working area for the Trust over IP, "Composable Event Streaming Representation (CESR)" specification.
 
-Contributions can be made by creating pull requests.
-The GitHub interface supports creating pull requests using the Edit (✏) button.
+* [Editor's Copy](https://trustoverip.github.io/tswg-cesr-specification/)
+
+#### Contributing
+
+All Trust Over IP Foundation Technical Stack Working Group contributions are done so under the following licenses:
+
+* [Patent and Copyright Grants](Contributing.md)
+* [Source Code](SOURCE_CODE.md)
+
+#### Licensing
+
+All Trust Over IP Foundation Technical Stack Working Group deliverables are published under the following licenses:
+
+* [Patent and Copyright Grants](LICENSE.md)
+* [Source Code](SOURCE_CODE.md)
+
+#### Getting involved
+
+Join a community of individuals and organizations solving the toughest technical and human-centric problems in digital trust. https://trustoverip.org/get-involved/membership/
 
 #### Note