Access Rights documentation is confusing

The property is listed as:
```
15.2.1. Property accessRights (M, 1)
```
while the example says:
```
datacite:rights
```

Also, URI attribute is listed in three different styles on the same page:
```
15.2.2. Attribute uri (M)
```
then in the description:
```
Use the conceptURI of the vocabulary term.
```
while the example says:
```
rightsURI=
```