Update user-guide.markdown
Update user-guide.markdown

Fix the inconsistent example output.
In the examples, should all the 'the_document' be changed to 'the_resource' to match the API naming such as method name 'getResource'.
basti1302/traverson,basti1302/traverson,traverson/traverson,basti1302/traverson,traverson/traverson,traverson/traverson