kijiproject.github.com: DOCS-139. make KijiExpress userguide deployable

issue: https://jira.kiji.org/browse/DOCS-139
review: https://review.kiji.org/r/1418
commit: https://github.com/kijiproject/kijiproject.github.com/commit/a51925335b321ef6e8fdac1ad13e22fa21bb3417