Update README to preserve useful bits from reverted commit

README.md

@@ -3,9 +3,28 @@
 
 Check out the [TCK Reference Guide](https://jakartaee.github.io/cdi-tck/) to get acquainted with the CDI TCK and learn how to execute and debug it.
 
+## Building CDI TCK artifacts
+To build the CDI TCK artifacts, use:
+
+`mvn install`
+
+or when compiling against staged Jakarta artifacts:
+
+`mvn -Pstaging install`
+
+## Building the CDI TCK distribution
+The CDI TCK distribution artifact is built by specifing an additional `-Drelease` property to build the TCK reference
+documentation and distribution bundle, e.g.:
+
+`mvn -Drelease install`
+
+## Eclipse Continuous Integration Environment
+The Eclipse continuous integration environment interface for the CDI project is located at https://ci.eclipse.org/cdi/
+The https://github.com/jakartaee/cdi/wiki/Eclipse-CI-Release-Jobs page describes the jobs found there.
+
 ## Sources in GIT
 
-Master branch contains the work-in-progress on CDI TCK 4.0
+Master branch contains the CDI TCK 4.0
 
 ### Source Layout