Clarify what this repo represents (#6)

README.md

@@ -1,7 +1,10 @@
 # cbioportal-core
-Legacy cBioPortal Core. Although many of the Java classes here are still in use by the main codebase and the `metaImport.py` Python scripts are still used for importing, we decided to move them all here for deprecating in the future once we have come up with a good plan for replacing them.
+Many of the Java classes here are in use by the main [cbioportal/cbioportal codebase](https://github.com/cbioPortal/cbioportal), the `metaImport.py` Python scripts are all used for importing. We decided to move them all to a single repo so that we might deprecate them in the future once we have come up with a good plan for replacing them.
 
 This repo contains:
 
 - many old Java classes for interacting with the database
 - The `metaImport.py` Python script used for importing
+
+## Inclusion in main codebase
+The `cbioportal-core` code is currently included in the final Docker image during the Docker build process: https://github.com/cBioPortal/cbioportal/blob/master/docker/web-and-data/Dockerfile#L48