Add preliminary support for split into annual volumes
and drop support for not splitting
e.g. `make test YY=18`
does not yet work for the index
diff --git a/xslt/idsCorpus-template.xml b/xslt/idsCorpus-template.xml
index 80608a2..4d042cb 100644
--- a/xslt/idsCorpus-template.xml
+++ b/xslt/idsCorpus-template.xml
@@ -4,7 +4,7 @@
<idsHeader TEIform="teiHeader" pattern="allesaußerZtg/Zschr" status="new" type="corpus" version="1.1">
<fileDesc>
<titleStmt>
- <korpusSigle>DNB</korpusSigle>
+ <korpusSigle>DNB{YY}</korpusSigle>
<c.title>Deutsche Nationalbibliothek: Belletristik</c.title>
</titleStmt>
<publicationStmt>