docs: Update models/_docs/docs.md

Co-authored-by: Ty Hob / Brian Mesick <112640379+bmtcril@users.noreply.github.com>

models/_docs/docs.md

@@ -71,7 +71,7 @@ The xAPI object identifier
 {% enddocs %}
 
 {% docs org %}
-The organization that the course belongs to
+The organization that the course belongs to, this value is extracted from the course key
 {% enddocs %}
 
 {% docs section_block_id %}