kijiproject.github.com: DOCS-159. KijiScoring Userguide has broken code accordions

issue: https://jira.kiji.org/browse/DOCS-159
review: https://review.kiji.org/r/1753
over-the-shoulder-reviewers: ['robertchu']
commit: https://github.com/kijiproject/kijiproject.github.com/commit/858361b9aade7949555577a29132fb96d0bbb7d6