[oslc-core] Fixed minor issue with JSON query example

[Steve K Speicher]

Problem page: 
http://open-services.net/bin/view/Main/OSLCCoreSpecJSONExamples

Before:
   "oslc:nextPage" : "
http://example.com/query?oslc.searchTerms="remote"&page=2"
After:
   "oslc:nextPage" : {rdf:resource : "
http://example.com/query?oslc.searchTerms="remote"&page=2"}


Change history: 
http://open-services.net/bin/rdiff/Main/OSLCCoreSpecJSONExamples?type=history

Thanks,
Steve Speicher
IBM Rational Software
OSLC - Lifecycle integration inspired by the web -> 
http://open-services.net