Adding discussion board link

Author: suttonpd

README.md

@@ -9,6 +9,8 @@ See the [srsRAN Project](https://www.srsran.com/) for information, guides and pr
 
 For application features, build instructions and user guides see the [srsRAN Project documentation](https://docs.srsran.com/projects/project).
 
+For community announcements and support, join our [discussion board](https://www.github.com/srsran/srsran_project/discussions).
+
 Current Features
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