Update ontology/caro.md

Co-authored-by: Deepak <deepakunni3@users.noreply.github.com>

Author: matentzn

ontology/caro.md

@@ -22,7 +22,8 @@ products:
 - id: caro.owl
 repository: https://github.com/obophenotype/caro
 tracker: https://github.com/obophenotype/caro/issues
-activity_status: obsolete
+activity_status: inactive
+is_obsolete: true
 ---
 
 The Common Anatomy Reference Ontology (CARO) is being developed to facilitate interoperability between existing anatomy ontologies for different species, and will provide a template for building new anatomy ontologies. CARO will be described in Anatomy Ontologies for Bioinformatics: Principles and Practice Albert Burger, Duncan Davidson and Richard Baldock (Editors).