Add "clj" tag for embedding Clojure code by URL.
Document an example.

Grammar correction.
Add the example documentation to the navigation.
Add the example code.
Switch from embedding URL content to file content.
Add an integration test.
Segment the project.clj to keep the example documentation concise.
Fix presentation of tabs/spaces.
Fix layout. Better RESTful example.

Update documentation to reflect example code changes.
Switch to 4 space tabs.

Really fix spacing.
Merge pull request #2 from curious-attempt-bunny/rook_example_code

Rook example code