Key Topics template revisions

[mmontesanonyc]

PR checklist:

• [x] Changes previewed and QC'ed
• [ ] In PR, mention team member for FYI, review, or approval

New content (if applicable):

• [ ] Date updated
• [ ] Tags and keywords updated
• [ ] Feature box updated

New data (if applicable)

• [ ] Added to Recently Updated
• [ ] Added to 311-crosswalk

[mmontesanonyc]

FYI @cgettings @etorem, I'm planning on merging a few things in today, reviewing, and deploying.