Use the Named Entitites and Labels from the .nes and .labels files to generate
XML like:
```
</Styles>
+<Tags>
+<NamedEntityTag ID="NET:0" LABEL="LOC" DESCRIPTION="Some NE"/>
+...
+<OtherTag ID="OT:0" LABEL="Topic" DESCRIPTION="ANZEIGEN"/>
+</Tags>
<Layout>
```
and insert the snippet after `</Styles>` and before `<Layout>`.

Effectively, this is ALTO v2.1
[syntax](https://github.com/altoxml/documentation/wiki/v2.1-Changes) and
[semantics](http://altoxml.github.io/documentation/use-cases/tags/ALTO_tags_usecases.html)
in ALTO v2.0 files.