Update README.md

added note for ADP containers now being supported

Author: ccoffin

README.md

@@ -2,7 +2,9 @@
 
 Major changes to cve-schema repo architecture!! if you have integrations that rely on the cve-schema repo structure, please review the changes here. The latest version of the CVE JSON record format is 5.1.0. A single schema file with bundled dependencies is available [here](https://github.com/CVEProject/cve-schema/blob/master/schema/docs/CVE_Record_Format_bundled.json).
 
-Note: The ADP functionality in the current schema is not yet deployed in CVE Services. The ADP functionality is currently under development and is for future use.
+Note: The CVE Record Format now supports Authorized Data Publisher (ADP) containers there is one active ADP currently.  The CVE Program uses a separate ADP container to provide additional CVE information (e.g., references) for some records. Access this README.md page [here](
+https://github.com/CVEProject/cvelistV5/blob/main/README.md)
+for more information about the CVE Program Container.
 
 Note: Please refer to the CVE Services page [here](https://www.cve.org/AllResources/CveServices) for known issues with the schema. 
 
@@ -38,4 +40,4 @@ An advanced example of a full record in 5.1.0 format is available at https://git
 
 A basic example of a cnaContainer, to be used with CVE Services, is available at https://github.com/cveproject/cve-schema/blob/master/schema/docs/cnaContainer-basic-example.json
 
-An advanced example of a cnaContainer, to be used with CVE Services, is available at https://github.com/cveproject/cve-schema/blob/master/schema/docs/cnaContainer-advanced-example.json
+An advanced example of a cnaContainer, to be used with CVE Services, is available at https://github.com/cveproject/cve-schema/blob/master/schema/docs/cnaContainer-advanced-example.json