Update README.md
1) Add a link to the GitHub releases / changelog
2) Remove the link to testbed runs, as the testbed has not been active since January 2020
@@ -27,8 +27,8 @@ Find out more:
* GitHub repository: https://github.com/contiki-ng/contiki-ng
* Documentation: https://github.com/contiki-ng/contiki-ng/wiki
+* List of releases and changes: https://github.com/contiki-ng/contiki-ng/releases
* Web site: http://contiki-ng.org
-* Nightly testbed runs: https://contiki-ng.github.io/testbed
Engage with the community:
