Merge pull request #11 from dr0i/master

Adjust readme
Rename "resource" to "manifestation"

- add rdf:seeAlso and rdf:type (this closes issue 13)
- update license in metadata.ttl
Add "sort -u" and triple validation
Add [de.]dbpedia.org -> lobid.org/organisation
Add rdf:type for organisations
Update predicate count and add a remark in the script