make attribute that changes folio: 004v to 4v
Add to root element
--> could then also be used to: pull in entry-metadata (#1088)
In root element add "n" attribute with unpadded version of value in page attribute. E.g. ,
https://github.com/cu-mkp/m-k-manuscript-data/blob/e212e4f5aa445063b5bfe4e29362aeaa0a476cf7/ms-xml/tc/tcp001rpreTEI.xml#L1
<root page="001r" n="1r" image="http://gallica.bnf.fr/ark:/12148/btv1b10500001g/f7.image">