Numbered subparts

### Description
`48 CFR 31.2` is a subpart starting w/ section `31.201` `/current/title-48/chapter-1/subchapter-E/part-31/subpart-31.2` but currently incorrectly linked as `/current/title-48/section-31.2`.
example reference: `/current/title-2/part-200/subpart-E#p-200.401(c)`
