Fix wrong argument name in example
Document that you can use a unique page name for hasobject, hassubject
Fix typo
Merge pull request #685 from ArthurClemens/patch-10

Fix wrong argument name in example
Merge pull request #686 from ArthurClemens/patch-11

Document that you can use a unique page name for hasobject, hassubject
Merge pull request #687 from ArthurClemens/patch-12

Fix typo