clarification on multiple values of classification: type attribute: m…

…etanorma/metanorma-iso#1094
metanorma · Feb 13, 2024 · e900d47 · e900d47
1 parent 6871490
commit e900d47
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/author/ref/document-attributes.adoc b/author/ref/document-attributes.adoc
@@ -198,8 +198,9 @@ Comma-delimited list of keywords associated with the document.
 
 `:classification:`::
 Comma-delimited list of classification tokens, expressed as `type:value` pairs; if no prefix is given to a value,
-"default" is supplied as the type [added in https://github.com/metanorma/metanorma-standoc/releases/tag/v1.9.1]
-
+"default" is supplied as the type [added in https://github.com/metanorma/metanorma-standoc/releases/tag/v1.9.1].
+There can only be one value per type in a token; if there are multiple classification values of the same type, 
+repeat the type in a new token; e.g.  `:classification: UDC:563.5.081, UDC:537.71`.
 
 [[draft]] `:draft:`::
 The document draft.